Home / 498,934.80-748,402.20-143,960.40

Finding the Fourth Proportional to 498,934.80, 748,402.20 and 143,960.40

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Solution

The fourth proportional to 498,934.80, 748,402.20 and 143,960.40 is: 215,940.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,934.80 : 748,402.20 = 143,960.40 : x
  2. Step 2: Convert to fraction form
    498,934.80/748,402.20 = 143,960.40/x
  3. Step 3: Cross multiply
    498,934.80x = 748,402.20 × 143,960.40
  4. Step 4: Simplify right side
    498,934.80x = 107,740,280,072.88
  5. Step 5: Solve for x
    x = 107,740,280,072.88/498,934.80
  6. Step 6: Final answer
    x = 215,940.60

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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.