Home / 482,947.40-724,421.10-303,321.80

Finding the Fourth Proportional to 482,947.40, 724,421.10 and 303,321.80

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Solution

The fourth proportional to 482,947.40, 724,421.10 and 303,321.80 is: 454,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,947.40 : 724,421.10 = 303,321.80 : x
  2. Step 2: Convert to fraction form
    482,947.40/724,421.10 = 303,321.80/x
  3. Step 3: Cross multiply
    482,947.40x = 724,421.10 × 303,321.80
  4. Step 4: Simplify right side
    482,947.40x = 219,732,712,009.98
  5. Step 5: Solve for x
    x = 219,732,712,009.98/482,947.40
  6. Step 6: Final answer
    x = 454,982.70

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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.