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Finding the Fourth Proportional to 496,909.20, 745,363.80 and 437,860.20

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Solution

The fourth proportional to 496,909.20, 745,363.80 and 437,860.20 is: 656,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,909.20 : 745,363.80 = 437,860.20 : x
  2. Step 2: Convert to fraction form
    496,909.20/745,363.80 = 437,860.20/x
  3. Step 3: Cross multiply
    496,909.20x = 745,363.80 × 437,860.20
  4. Step 4: Simplify right side
    496,909.20x = 326,365,142,540.76
  5. Step 5: Solve for x
    x = 326,365,142,540.76/496,909.20
  6. Step 6: Final answer
    x = 656,790.30

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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.