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Finding the Fourth Proportional to 484,666.02, 727,008.75 and 129,679.47

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Solution

The fourth proportional to 484,666.02, 727,008.75 and 129,679.47 is: 194,521.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,666.02 : 727,008.75 = 129,679.47 : x
  2. Step 2: Convert to fraction form
    484,666.02/727,008.75 = 129,679.47/x
  3. Step 3: Cross multiply
    484,666.02x = 727,008.75 × 129,679.47
  4. Step 4: Simplify right side
    484,666.02x = 94,278,109,385.36
  5. Step 5: Solve for x
    x = 94,278,109,385.36/484,666.02
  6. Step 6: Final answer
    x = 194,521.81

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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.