Home / 861,044.80-1,291,567.20-661,748.80

Finding the Fourth Proportional to 861,044.80, 1,291,567.20 and 661,748.80

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Solution

The fourth proportional to 861,044.80, 1,291,567.20 and 661,748.80 is: 992,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,044.80 : 1,291,567.20 = 661,748.80 : x
  2. Step 2: Convert to fraction form
    861,044.80/1,291,567.20 = 661,748.80/x
  3. Step 3: Cross multiply
    861,044.80x = 1,291,567.20 × 661,748.80
  4. Step 4: Simplify right side
    861,044.80x = 854,693,044,719.36
  5. Step 5: Solve for x
    x = 854,693,044,719.36/861,044.80
  6. Step 6: Final answer
    x = 992,623.20

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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.