Home / 625,734.79-863,531.01-353,843.36

Finding the Fourth Proportional to 625,734.79, 863,531.01 and 353,843.36

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Solution

The fourth proportional to 625,734.79, 863,531.01 and 353,843.36 is: 488,313.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,734.79 : 863,531.01 = 353,843.36 : x
  2. Step 2: Convert to fraction form
    625,734.79/863,531.01 = 353,843.36/x
  3. Step 3: Cross multiply
    625,734.79x = 863,531.01 × 353,843.36
  4. Step 4: Simplify right side
    625,734.79x = 305,554,713,592.58
  5. Step 5: Solve for x
    x = 305,554,713,592.58/625,734.79
  6. Step 6: Final answer
    x = 488,313.45

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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.