Home / 461,531.52-636,912.11-257,580.20

Finding the Fourth Proportional to 461,531.52, 636,912.11 and 257,580.20

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Solution

The fourth proportional to 461,531.52, 636,912.11 and 257,580.20 is: 355,459.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,531.52 : 636,912.11 = 257,580.20 : x
  2. Step 2: Convert to fraction form
    461,531.52/636,912.11 = 257,580.20/x
  3. Step 3: Cross multiply
    461,531.52x = 636,912.11 × 257,580.20
  4. Step 4: Simplify right side
    461,531.52x = 164,055,950,912.45
  5. Step 5: Solve for x
    x = 164,055,950,912.45/461,531.52
  6. Step 6: Final answer
    x = 355,459.91

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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.