Home / 747,912.76-1,032,115.50-408,378.58

Finding the Fourth Proportional to 747,912.76, 1,032,115.50 and 408,378.58

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Solution

The fourth proportional to 747,912.76, 1,032,115.50 and 408,378.58 is: 563,560.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,912.76 : 1,032,115.50 = 408,378.58 : x
  2. Step 2: Convert to fraction form
    747,912.76/1,032,115.50 = 408,378.58/x
  3. Step 3: Cross multiply
    747,912.76x = 1,032,115.50 × 408,378.58
  4. Step 4: Simplify right side
    747,912.76x = 421,493,862,285.99
  5. Step 5: Solve for x
    x = 421,493,862,285.99/747,912.76
  6. Step 6: Final answer
    x = 563,560.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.