Home / 764,454.16-1,146,996.96-385,169.92

Finding the Fourth Proportional to 764,454.16, 1,146,996.96 and 385,169.92

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Solution

The fourth proportional to 764,454.16, 1,146,996.96 and 385,169.92 is: 577,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,454.16 : 1,146,996.96 = 385,169.92 : x
  2. Step 2: Convert to fraction form
    764,454.16/1,146,996.96 = 385,169.92/x
  3. Step 3: Cross multiply
    764,454.16x = 1,146,996.96 × 385,169.92
  4. Step 4: Simplify right side
    764,454.16x = 441,788,727,323.44
  5. Step 5: Solve for x
    x = 441,788,727,323.44/764,454.16
  6. Step 6: Final answer
    x = 577,913.96

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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.