Home / 655,531.90-904,659.26-379,899.20

Finding the Fourth Proportional to 655,531.90, 904,659.26 and 379,899.20

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Solution

The fourth proportional to 655,531.90, 904,659.26 and 379,899.20 is: 524,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,531.90 : 904,659.26 = 379,899.20 : x
  2. Step 2: Convert to fraction form
    655,531.90/904,659.26 = 379,899.20/x
  3. Step 3: Cross multiply
    655,531.90x = 904,659.26 × 379,899.20
  4. Step 4: Simplify right side
    655,531.90x = 343,679,329,508.74
  5. Step 5: Solve for x
    x = 343,679,329,508.74/655,531.90
  6. Step 6: Final answer
    x = 524,275.52

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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.