Home / 499,240.20-747,305.10-288,251.40

Finding the Fourth Proportional to 499,240.20, 747,305.10 and 288,251.40

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Solution

The fourth proportional to 499,240.20, 747,305.10 and 288,251.40 is: 431,479.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,240.20 : 747,305.10 = 288,251.40 : x
  2. Step 2: Convert to fraction form
    499,240.20/747,305.10 = 288,251.40/x
  3. Step 3: Cross multiply
    499,240.20x = 747,305.10 × 288,251.40
  4. Step 4: Simplify right side
    499,240.20x = 215,411,741,302.14
  5. Step 5: Solve for x
    x = 215,411,741,302.14/499,240.20
  6. Step 6: Final answer
    x = 431,479.16

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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.