Home / 861,204.60-1,291,657.86-262,020.60

Finding the Fourth Proportional to 861,204.60, 1,291,657.86 and 262,020.60

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Solution

The fourth proportional to 861,204.60, 1,291,657.86 and 262,020.60 is: 392,985.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,204.60 : 1,291,657.86 = 262,020.60 : x
  2. Step 2: Convert to fraction form
    861,204.60/1,291,657.86 = 262,020.60/x
  3. Step 3: Cross multiply
    861,204.60x = 1,291,657.86 × 262,020.60
  4. Step 4: Simplify right side
    861,204.60x = 338,440,967,471.92
  5. Step 5: Solve for x
    x = 338,440,967,471.92/861,204.60
  6. Step 6: Final answer
    x = 392,985.55

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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.