Home / 988,209.20-1,482,313.80-323,428.40

Finding the Fourth Proportional to 988,209.20, 1,482,313.80 and 323,428.40

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Solution

The fourth proportional to 988,209.20, 1,482,313.80 and 323,428.40 is: 485,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,209.20 : 1,482,313.80 = 323,428.40 : x
  2. Step 2: Convert to fraction form
    988,209.20/1,482,313.80 = 323,428.40/x
  3. Step 3: Cross multiply
    988,209.20x = 1,482,313.80 × 323,428.40
  4. Step 4: Simplify right side
    988,209.20x = 479,422,380,631.92
  5. Step 5: Solve for x
    x = 479,422,380,631.92/988,209.20
  6. Step 6: Final answer
    x = 485,142.60

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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.