Home / 729,003.74-1,006,025.78-406,713.90

Finding the Fourth Proportional to 729,003.74, 1,006,025.78 and 406,713.90

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Solution

The fourth proportional to 729,003.74, 1,006,025.78 and 406,713.90 is: 561,265.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,003.74 : 1,006,025.78 = 406,713.90 : x
  2. Step 2: Convert to fraction form
    729,003.74/1,006,025.78 = 406,713.90/x
  3. Step 3: Cross multiply
    729,003.74x = 1,006,025.78 × 406,713.90
  4. Step 4: Simplify right side
    729,003.74x = 409,164,669,501.13
  5. Step 5: Solve for x
    x = 409,164,669,501.13/729,003.74
  6. Step 6: Final answer
    x = 561,265.53

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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.