Home / 729,023.40-1,006,081.42-406,761.66

Finding the Fourth Proportional to 729,023.40, 1,006,081.42 and 406,761.66

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Solution

The fourth proportional to 729,023.40, 1,006,081.42 and 406,761.66 is: 561,347.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,023.40 : 1,006,081.42 = 406,761.66 : x
  2. Step 2: Convert to fraction form
    729,023.40/1,006,081.42 = 406,761.66/x
  3. Step 3: Cross multiply
    729,023.40x = 1,006,081.42 × 406,761.66
  4. Step 4: Simplify right side
    729,023.40x = 409,235,348,494.36
  5. Step 5: Solve for x
    x = 409,235,348,494.36/729,023.40
  6. Step 6: Final answer
    x = 561,347.34

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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.