Home / 1,000,149.12-1,380,191.60-570,436.43

Finding the Fourth Proportional to 1,000,149.12, 1,380,191.60 and 570,436.43

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Solution

The fourth proportional to 1,000,149.12, 1,380,191.60 and 570,436.43 is: 787,194.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,149.12 : 1,380,191.60 = 570,436.43 : x
  2. Step 2: Convert to fraction form
    1,000,149.12/1,380,191.60 = 570,436.43/x
  3. Step 3: Cross multiply
    1,000,149.12x = 1,380,191.60 × 570,436.43
  4. Step 4: Simplify right side
    1,000,149.12x = 787,311,563,545.12
  5. Step 5: Solve for x
    x = 787,311,563,545.12/1,000,149.12
  6. Step 6: Final answer
    x = 787,194.18

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.