Home / 725,399.22-1,000,987.25-403,088.90

Finding the Fourth Proportional to 725,399.22, 1,000,987.25 and 403,088.90

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Solution

The fourth proportional to 725,399.22, 1,000,987.25 and 403,088.90 is: 556,227.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,399.22 : 1,000,987.25 = 403,088.90 : x
  2. Step 2: Convert to fraction form
    725,399.22/1,000,987.25 = 403,088.90/x
  3. Step 3: Cross multiply
    725,399.22x = 1,000,987.25 × 403,088.90
  4. Step 4: Simplify right side
    725,399.22x = 403,486,849,516.53
  5. Step 5: Solve for x
    x = 403,486,849,516.53/725,399.22
  6. Step 6: Final answer
    x = 556,227.30

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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.