Home / 725,720.82-1,001,492.11-399,055.22

Finding the Fourth Proportional to 725,720.82, 1,001,492.11 and 399,055.22

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Solution

The fourth proportional to 725,720.82, 1,001,492.11 and 399,055.22 is: 550,694.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,720.82 : 1,001,492.11 = 399,055.22 : x
  2. Step 2: Convert to fraction form
    725,720.82/1,001,492.11 = 399,055.22/x
  3. Step 3: Cross multiply
    725,720.82x = 1,001,492.11 × 399,055.22
  4. Step 4: Simplify right side
    725,720.82x = 399,650,654,284.31
  5. Step 5: Solve for x
    x = 399,650,654,284.31/725,720.82
  6. Step 6: Final answer
    x = 550,694.76

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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.