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Finding the Fourth Proportional to 482,959.30, 724,406.55 and 127,965.70

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Solution

The fourth proportional to 482,959.30, 724,406.55 and 127,965.70 is: 191,939.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,959.30 : 724,406.55 = 127,965.70 : x
  2. Step 2: Convert to fraction form
    482,959.30/724,406.55 = 127,965.70/x
  3. Step 3: Cross multiply
    482,959.30x = 724,406.55 × 127,965.70
  4. Step 4: Simplify right side
    482,959.30x = 92,699,191,255.34
  5. Step 5: Solve for x
    x = 92,699,191,255.34/482,959.30
  6. Step 6: Final answer
    x = 191,939.97

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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.