Home / 483,011.40-724,517.10-128,061.30

Finding the Fourth Proportional to 483,011.40, 724,517.10 and 128,061.30

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Solution

The fourth proportional to 483,011.40, 724,517.10 and 128,061.30 is: 192,091.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,011.40 : 724,517.10 = 128,061.30 : x
  2. Step 2: Convert to fraction form
    483,011.40/724,517.10 = 128,061.30/x
  3. Step 3: Cross multiply
    483,011.40x = 724,517.10 × 128,061.30
  4. Step 4: Simplify right side
    483,011.40x = 92,782,601,698.23
  5. Step 5: Solve for x
    x = 92,782,601,698.23/483,011.40
  6. Step 6: Final answer
    x = 192,091.95

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Similar ratio
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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.