Home / 729,215.69-1,006,216.88-406,863.14

Finding the Fourth Proportional to 729,215.69, 1,006,216.88 and 406,863.14

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Solution

The fourth proportional to 729,215.69, 1,006,216.88 and 406,863.14 is: 561,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,215.69 : 1,006,216.88 = 406,863.14 : x
  2. Step 2: Convert to fraction form
    729,215.69/1,006,216.88 = 406,863.14/x
  3. Step 3: Cross multiply
    729,215.69x = 1,006,216.88 × 406,863.14
  4. Step 4: Simplify right side
    729,215.69x = 409,392,552,252.40
  5. Step 5: Solve for x
    x = 409,392,552,252.40/729,215.69
  6. Step 6: Final answer
    x = 561,414.90

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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.