Home / 689,695.32-1,034,543.56-329,781.49

Finding the Fourth Proportional to 689,695.32, 1,034,543.56 and 329,781.49

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Solution

The fourth proportional to 689,695.32, 1,034,543.56 and 329,781.49 is: 494,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,695.32 : 1,034,543.56 = 329,781.49 : x
  2. Step 2: Convert to fraction form
    689,695.32/1,034,543.56 = 329,781.49/x
  3. Step 3: Cross multiply
    689,695.32x = 1,034,543.56 × 329,781.49
  4. Step 4: Simplify right side
    689,695.32x = 341,173,319,713.54
  5. Step 5: Solve for x
    x = 341,173,319,713.54/689,695.32
  6. Step 6: Final answer
    x = 494,672.51

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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.