Home / 861,908.40-1,292,862.60-442,004.40

Finding the Fourth Proportional to 861,908.40, 1,292,862.60 and 442,004.40

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Solution

The fourth proportional to 861,908.40, 1,292,862.60 and 442,004.40 is: 663,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,908.40 : 1,292,862.60 = 442,004.40 : x
  2. Step 2: Convert to fraction form
    861,908.40/1,292,862.60 = 442,004.40/x
  3. Step 3: Cross multiply
    861,908.40x = 1,292,862.60 × 442,004.40
  4. Step 4: Simplify right side
    861,908.40x = 571,450,957,795.44
  5. Step 5: Solve for x
    x = 571,450,957,795.44/861,908.40
  6. Step 6: Final answer
    x = 663,006.60

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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.