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Finding the Fourth Proportional to 554,472.40, 831,708.60 and 498,375.85

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Solution

The fourth proportional to 554,472.40, 831,708.60 and 498,375.85 is: 747,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,472.40 : 831,708.60 = 498,375.85 : x
  2. Step 2: Convert to fraction form
    554,472.40/831,708.60 = 498,375.85/x
  3. Step 3: Cross multiply
    554,472.40x = 831,708.60 × 498,375.85
  4. Step 4: Simplify right side
    554,472.40x = 414,503,480,477.31
  5. Step 5: Solve for x
    x = 414,503,480,477.31/554,472.40
  6. Step 6: Final answer
    x = 747,563.78

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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.