Home / 1,013,432.30-1,520,148.45-413,999.90

Finding the Fourth Proportional to 1,013,432.30, 1,520,148.45 and 413,999.90

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Solution

The fourth proportional to 1,013,432.30, 1,520,148.45 and 413,999.90 is: 620,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,432.30 : 1,520,148.45 = 413,999.90 : x
  2. Step 2: Convert to fraction form
    1,013,432.30/1,520,148.45 = 413,999.90/x
  3. Step 3: Cross multiply
    1,013,432.30x = 1,520,148.45 × 413,999.90
  4. Step 4: Simplify right side
    1,013,432.30x = 629,341,306,285.16
  5. Step 5: Solve for x
    x = 629,341,306,285.16/1,013,432.30
  6. Step 6: Final answer
    x = 620,999.85

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Double scale
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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.