Home / 657,631.20-986,446.80-303,337.20

Finding the Fourth Proportional to 657,631.20, 986,446.80 and 303,337.20

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Solution

The fourth proportional to 657,631.20, 986,446.80 and 303,337.20 is: 455,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,631.20 : 986,446.80 = 303,337.20 : x
  2. Step 2: Convert to fraction form
    657,631.20/986,446.80 = 303,337.20/x
  3. Step 3: Cross multiply
    657,631.20x = 986,446.80 × 303,337.20
  4. Step 4: Simplify right side
    657,631.20x = 299,226,010,260.96
  5. Step 5: Solve for x
    x = 299,226,010,260.96/657,631.20
  6. Step 6: Final answer
    x = 455,005.80

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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.