Home / 861,877.30-1,292,812.42-262,836.70

Finding the Fourth Proportional to 861,877.30, 1,292,812.42 and 262,836.70

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Solution

The fourth proportional to 861,877.30, 1,292,812.42 and 262,836.70 is: 394,253.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,877.30 : 1,292,812.42 = 262,836.70 : x
  2. Step 2: Convert to fraction form
    861,877.30/1,292,812.42 = 262,836.70/x
  3. Step 3: Cross multiply
    861,877.30x = 1,292,812.42 × 262,836.70
  4. Step 4: Simplify right side
    861,877.30x = 339,798,550,191.81
  5. Step 5: Solve for x
    x = 339,798,550,191.81/861,877.30
  6. Step 6: Final answer
    x = 394,253.97

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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.