Home / 735,129.10-1,102,693.65-665,145.10

Finding the Fourth Proportional to 735,129.10, 1,102,693.65 and 665,145.10

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Solution

The fourth proportional to 735,129.10, 1,102,693.65 and 665,145.10 is: 997,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,129.10 : 1,102,693.65 = 665,145.10 : x
  2. Step 2: Convert to fraction form
    735,129.10/1,102,693.65 = 665,145.10/x
  3. Step 3: Cross multiply
    735,129.10x = 1,102,693.65 × 665,145.10
  4. Step 4: Simplify right side
    735,129.10x = 733,451,278,098.62
  5. Step 5: Solve for x
    x = 733,451,278,098.62/735,129.10
  6. Step 6: Final answer
    x = 997,717.65

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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.