Home / 657,132.40-984,532.20-407,522.80

Finding the Fourth Proportional to 657,132.40, 984,532.20 and 407,522.80

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Solution

The fourth proportional to 657,132.40, 984,532.20 and 407,522.80 is: 610,560.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,132.40 : 984,532.20 = 407,522.80 : x
  2. Step 2: Convert to fraction form
    657,132.40/984,532.20 = 407,522.80/x
  3. Step 3: Cross multiply
    657,132.40x = 984,532.20 × 407,522.80
  4. Step 4: Simplify right side
    657,132.40x = 401,219,318,834.16
  5. Step 5: Solve for x
    x = 401,219,318,834.16/657,132.40
  6. Step 6: Final answer
    x = 610,560.85

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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.