Home / 767,553.40-1,151,330.10-206,587.90

Finding the Fourth Proportional to 767,553.40, 1,151,330.10 and 206,587.90

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Solution

The fourth proportional to 767,553.40, 1,151,330.10 and 206,587.90 is: 309,881.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,553.40 : 1,151,330.10 = 206,587.90 : x
  2. Step 2: Convert to fraction form
    767,553.40/1,151,330.10 = 206,587.90/x
  3. Step 3: Cross multiply
    767,553.40x = 1,151,330.10 × 206,587.90
  4. Step 4: Simplify right side
    767,553.40x = 237,850,867,565.79
  5. Step 5: Solve for x
    x = 237,850,867,565.79/767,553.40
  6. Step 6: Final answer
    x = 309,881.85

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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.