Home / 729,498.13-1,004,478.89-661,069.90

Finding the Fourth Proportional to 729,498.13, 1,004,478.89 and 661,069.90

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Solution

The fourth proportional to 729,498.13, 1,004,478.89 and 661,069.90 is: 910,256.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,498.13 : 1,004,478.89 = 661,069.90 : x
  2. Step 2: Convert to fraction form
    729,498.13/1,004,478.89 = 661,069.90/x
  3. Step 3: Cross multiply
    729,498.13x = 1,004,478.89 × 661,069.90
  4. Step 4: Simplify right side
    729,498.13x = 664,030,757,314.66
  5. Step 5: Solve for x
    x = 664,030,757,314.66/729,498.13
  6. Step 6: Final answer
    x = 910,256.97

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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.