Home / 861,851.36-1,292,865.32-329,819.88

Finding the Fourth Proportional to 861,851.36, 1,292,865.32 and 329,819.88

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Solution

The fourth proportional to 861,851.36, 1,292,865.32 and 329,819.88 is: 494,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,851.36 : 1,292,865.32 = 329,819.88 : x
  2. Step 2: Convert to fraction form
    861,851.36/1,292,865.32 = 329,819.88/x
  3. Step 3: Cross multiply
    861,851.36x = 1,292,865.32 × 329,819.88
  4. Step 4: Simplify right side
    861,851.36x = 426,412,684,698.56
  5. Step 5: Solve for x
    x = 426,412,684,698.56/861,851.36
  6. Step 6: Final answer
    x = 494,763.60

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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.