Home / 729,022.40-1,006,080.04-406,760.66

Finding the Fourth Proportional to 729,022.40, 1,006,080.04 and 406,760.66

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Solution

The fourth proportional to 729,022.40, 1,006,080.04 and 406,760.66 is: 561,345.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,022.40 : 1,006,080.04 = 406,760.66 : x
  2. Step 2: Convert to fraction form
    729,022.40/1,006,080.04 = 406,760.66/x
  3. Step 3: Cross multiply
    729,022.40x = 1,006,080.04 × 406,760.66
  4. Step 4: Simplify right side
    729,022.40x = 409,233,781,083.23
  5. Step 5: Solve for x
    x = 409,233,781,083.23/729,022.40
  6. Step 6: Final answer
    x = 561,345.96

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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.