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Finding the Fourth Proportional to 661,063.20, 991,594.80 and 603,002.40

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Solution

The fourth proportional to 661,063.20, 991,594.80 and 603,002.40 is: 904,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,063.20 : 991,594.80 = 603,002.40 : x
  2. Step 2: Convert to fraction form
    661,063.20/991,594.80 = 603,002.40/x
  3. Step 3: Cross multiply
    661,063.20x = 991,594.80 × 603,002.40
  4. Step 4: Simplify right side
    661,063.20x = 597,934,044,227.52
  5. Step 5: Solve for x
    x = 597,934,044,227.52/661,063.20
  6. Step 6: Final answer
    x = 904,503.60

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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.