Home / 762,451.20-1,143,331.20-288,979.20

Finding the Fourth Proportional to 762,451.20, 1,143,331.20 and 288,979.20

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Solution

The fourth proportional to 762,451.20, 1,143,331.20 and 288,979.20 is: 433,337.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,451.20 : 1,143,331.20 = 288,979.20 : x
  2. Step 2: Convert to fraction form
    762,451.20/1,143,331.20 = 288,979.20/x
  3. Step 3: Cross multiply
    762,451.20x = 1,143,331.20 × 288,979.20
  4. Step 4: Simplify right side
    762,451.20x = 330,398,935,511.04
  5. Step 5: Solve for x
    x = 330,398,935,511.04/762,451.20
  6. Step 6: Final answer
    x = 433,337.81

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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.