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Finding the Fourth Proportional to 649,466.70, 974,200.05 and 425,517.90

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Solution

The fourth proportional to 649,466.70, 974,200.05 and 425,517.90 is: 638,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,466.70 : 974,200.05 = 425,517.90 : x
  2. Step 2: Convert to fraction form
    649,466.70/974,200.05 = 425,517.90/x
  3. Step 3: Cross multiply
    649,466.70x = 974,200.05 × 425,517.90
  4. Step 4: Simplify right side
    649,466.70x = 414,539,559,455.90
  5. Step 5: Solve for x
    x = 414,539,559,455.90/649,466.70
  6. Step 6: Final answer
    x = 638,276.85

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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.