Home / 769,426.20-1,154,162.88-263,980.14

Finding the Fourth Proportional to 769,426.20, 1,154,162.88 and 263,980.14

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Solution

The fourth proportional to 769,426.20, 1,154,162.88 and 263,980.14 is: 395,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,426.20 : 1,154,162.88 = 263,980.14 : x
  2. Step 2: Convert to fraction form
    769,426.20/1,154,162.88 = 263,980.14/x
  3. Step 3: Cross multiply
    769,426.20x = 1,154,162.88 × 263,980.14
  4. Step 4: Simplify right side
    769,426.20x = 304,676,078,645.20
  5. Step 5: Solve for x
    x = 304,676,078,645.20/769,426.20
  6. Step 6: Final answer
    x = 395,978.30

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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.