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Finding the Fourth Proportional to 482,901.80, 724,320.30 and 127,908.20

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Solution

The fourth proportional to 482,901.80, 724,320.30 and 127,908.20 is: 191,853.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,901.80 : 724,320.30 = 127,908.20 : x
  2. Step 2: Convert to fraction form
    482,901.80/724,320.30 = 127,908.20/x
  3. Step 3: Cross multiply
    482,901.80x = 724,320.30 × 127,908.20
  4. Step 4: Simplify right side
    482,901.80x = 92,646,505,796.46
  5. Step 5: Solve for x
    x = 92,646,505,796.46/482,901.80
  6. Step 6: Final answer
    x = 191,853.72

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1.5x scale

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.