Home / 830,710.80-1,246,066.20-511,846.20

Finding the Fourth Proportional to 830,710.80, 1,246,066.20 and 511,846.20

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Solution

The fourth proportional to 830,710.80, 1,246,066.20 and 511,846.20 is: 767,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,710.80 : 1,246,066.20 = 511,846.20 : x
  2. Step 2: Convert to fraction form
    830,710.80/1,246,066.20 = 511,846.20/x
  3. Step 3: Cross multiply
    830,710.80x = 1,246,066.20 × 511,846.20
  4. Step 4: Simplify right side
    830,710.80x = 637,794,249,418.44
  5. Step 5: Solve for x
    x = 637,794,249,418.44/830,710.80
  6. Step 6: Final answer
    x = 767,769.30

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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.