Home / 861,669.20-1,292,503.80-483,755.60

Finding the Fourth Proportional to 861,669.20, 1,292,503.80 and 483,755.60

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Solution

The fourth proportional to 861,669.20, 1,292,503.80 and 483,755.60 is: 725,633.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,669.20 : 1,292,503.80 = 483,755.60 : x
  2. Step 2: Convert to fraction form
    861,669.20/1,292,503.80 = 483,755.60/x
  3. Step 3: Cross multiply
    861,669.20x = 1,292,503.80 × 483,755.60
  4. Step 4: Simplify right side
    861,669.20x = 625,255,951,271.28
  5. Step 5: Solve for x
    x = 625,255,951,271.28/861,669.20
  6. Step 6: Final answer
    x = 725,633.40

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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.