Home / 1,272,331.76-1,755,798.15-699,359.62

Finding the Fourth Proportional to 1,272,331.76, 1,755,798.15 and 699,359.62

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Solution

The fourth proportional to 1,272,331.76, 1,755,798.15 and 699,359.62 is: 965,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,331.76 : 1,755,798.15 = 699,359.62 : x
  2. Step 2: Convert to fraction form
    1,272,331.76/1,755,798.15 = 699,359.62/x
  3. Step 3: Cross multiply
    1,272,331.76x = 1,755,798.15 × 699,359.62
  4. Step 4: Simplify right side
    1,272,331.76x = 1,227,934,326,980.70
  5. Step 5: Solve for x
    x = 1,227,934,326,980.70/1,272,331.76
  6. Step 6: Final answer
    x = 965,105.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.