Home / 482,921.80-724,350.30-127,928.20

Finding the Fourth Proportional to 482,921.80, 724,350.30 and 127,928.20

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Solution

The fourth proportional to 482,921.80, 724,350.30 and 127,928.20 is: 191,883.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,921.80 : 724,350.30 = 127,928.20 : x
  2. Step 2: Convert to fraction form
    482,921.80/724,350.30 = 127,928.20/x
  3. Step 3: Cross multiply
    482,921.80x = 724,350.30 × 127,928.20
  4. Step 4: Simplify right side
    482,921.80x = 92,664,830,048.46
  5. Step 5: Solve for x
    x = 92,664,830,048.46/482,921.80
  6. Step 6: Final answer
    x = 191,883.72

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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.