Home / 1,070,089.20-1,605,131.64-260,467.20

Finding the Fourth Proportional to 1,070,089.20, 1,605,131.64 and 260,467.20

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Solution

The fourth proportional to 1,070,089.20, 1,605,131.64 and 260,467.20 is: 390,700.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,089.20 : 1,605,131.64 = 260,467.20 : x
  2. Step 2: Convert to fraction form
    1,070,089.20/1,605,131.64 = 260,467.20/x
  3. Step 3: Cross multiply
    1,070,089.20x = 1,605,131.64 × 260,467.20
  4. Step 4: Simplify right side
    1,070,089.20x = 418,084,143,902.21
  5. Step 5: Solve for x
    x = 418,084,143,902.21/1,070,089.20
  6. Step 6: Final answer
    x = 390,700.27

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.