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Finding the Fourth Proportional to 617,765.92, 927,248.08 and 298,142.72

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Solution

The fourth proportional to 617,765.92, 927,248.08 and 298,142.72 is: 447,503.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,765.92 : 927,248.08 = 298,142.72 : x
  2. Step 2: Convert to fraction form
    617,765.92/927,248.08 = 298,142.72/x
  3. Step 3: Cross multiply
    617,765.92x = 927,248.08 × 298,142.72
  4. Step 4: Simplify right side
    617,765.92x = 276,452,264,685.98
  5. Step 5: Solve for x
    x = 276,452,264,685.98/617,765.92
  6. Step 6: Final answer
    x = 447,503.26

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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.