Home / 729,218.70-1,006,221-406,866.15

Finding the Fourth Proportional to 729,218.70, 1,006,221 and 406,866.15

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Solution

The fourth proportional to 729,218.70, 1,006,221 and 406,866.15 is: 561,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,218.70 : 1,006,221 = 406,866.15 : x
  2. Step 2: Convert to fraction form
    729,218.70/1,006,221 = 406,866.15/x
  3. Step 3: Cross multiply
    729,218.70x = 1,006,221 × 406,866.15
  4. Step 4: Simplify right side
    729,218.70x = 409,397,264,319.15
  5. Step 5: Solve for x
    x = 409,397,264,319.15/729,218.70
  6. Step 6: Final answer
    x = 561,419.04

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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.