Home / 764,549.80-1,147,343.10-497,660.20

Finding the Fourth Proportional to 764,549.80, 1,147,343.10 and 497,660.20

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Solution

The fourth proportional to 764,549.80, 1,147,343.10 and 497,660.20 is: 746,827.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,549.80 : 1,147,343.10 = 497,660.20 : x
  2. Step 2: Convert to fraction form
    764,549.80/1,147,343.10 = 497,660.20/x
  3. Step 3: Cross multiply
    764,549.80x = 1,147,343.10 × 497,660.20
  4. Step 4: Simplify right side
    764,549.80x = 570,986,996,614.62
  5. Step 5: Solve for x
    x = 570,986,996,614.62/764,549.80
  6. Step 6: Final answer
    x = 746,827.74

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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.