Home / 721,856.31-1,082,346.00-361,608.20

Finding the Fourth Proportional to 721,856.31, 1,082,346.00 and 361,608.20

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Solution

The fourth proportional to 721,856.31, 1,082,346.00 and 361,608.20 is: 542,192.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,856.31 : 1,082,346.00 = 361,608.20 : x
  2. Step 2: Convert to fraction form
    721,856.31/1,082,346.00 = 361,608.20/x
  3. Step 3: Cross multiply
    721,856.31x = 1,082,346.00 × 361,608.20
  4. Step 4: Simplify right side
    721,856.31x = 391,385,186,128.24
  5. Step 5: Solve for x
    x = 391,385,186,128.24/721,856.31
  6. Step 6: Final answer
    x = 542,192.65

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Double scale
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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.