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Finding the Fourth Proportional to 625,734.72, 938,881.08 and 288,594

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Solution

The fourth proportional to 625,734.72, 938,881.08 and 288,594 is: 433,019.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,734.72 : 938,881.08 = 288,594 : x
  2. Step 2: Convert to fraction form
    625,734.72/938,881.08 = 288,594/x
  3. Step 3: Cross multiply
    625,734.72x = 938,881.08 × 288,594
  4. Step 4: Simplify right side
    625,734.72x = 270,955,446,401.52
  5. Step 5: Solve for x
    x = 270,955,446,401.52/625,734.72
  6. Step 6: Final answer
    x = 433,019.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.