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Finding the Fourth Proportional to 484,702.02, 727,062.75 and 129,715.47

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Solution

The fourth proportional to 484,702.02, 727,062.75 and 129,715.47 is: 194,575.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,702.02 : 727,062.75 = 129,715.47 : x
  2. Step 2: Convert to fraction form
    484,702.02/727,062.75 = 129,715.47/x
  3. Step 3: Cross multiply
    484,702.02x = 727,062.75 × 129,715.47
  4. Step 4: Simplify right side
    484,702.02x = 94,311,286,335.74
  5. Step 5: Solve for x
    x = 94,311,286,335.74/484,702.02
  6. Step 6: Final answer
    x = 194,575.81

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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.