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Finding the Fourth Proportional to 547,730.06, 755,737.94 and 318,150.93

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Solution

The fourth proportional to 547,730.06, 755,737.94 and 318,150.93 is: 438,973.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,730.06 : 755,737.94 = 318,150.93 : x
  2. Step 2: Convert to fraction form
    547,730.06/755,737.94 = 318,150.93/x
  3. Step 3: Cross multiply
    547,730.06x = 755,737.94 × 318,150.93
  4. Step 4: Simplify right side
    547,730.06x = 240,438,726,856.53
  5. Step 5: Solve for x
    x = 240,438,726,856.53/547,730.06
  6. Step 6: Final answer
    x = 438,973.04

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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.