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Finding the Fourth Proportional to 503,432.20, 756,023.10 and 487,685.80

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Solution

The fourth proportional to 503,432.20, 756,023.10 and 487,685.80 is: 732,376.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,432.20 : 756,023.10 = 487,685.80 : x
  2. Step 2: Convert to fraction form
    503,432.20/756,023.10 = 487,685.80/x
  3. Step 3: Cross multiply
    503,432.20x = 756,023.10 × 487,685.80
  4. Step 4: Simplify right side
    503,432.20x = 368,701,730,341.98
  5. Step 5: Solve for x
    x = 368,701,730,341.98/503,432.20
  6. Step 6: Final answer
    x = 732,376.14

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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.