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Finding the Fourth Proportional to 402,584.52, 555,690.42 and 259,344.12

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Solution

The fourth proportional to 402,584.52, 555,690.42 and 259,344.12 is: 357,974.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,584.52 : 555,690.42 = 259,344.12 : x
  2. Step 2: Convert to fraction form
    402,584.52/555,690.42 = 259,344.12/x
  3. Step 3: Cross multiply
    402,584.52x = 555,690.42 × 259,344.12
  4. Step 4: Simplify right side
    402,584.52x = 144,115,042,967.33
  5. Step 5: Solve for x
    x = 144,115,042,967.33/402,584.52
  6. Step 6: Final answer
    x = 357,974.63

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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.