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Finding the Fourth Proportional to 625,688.02, 938,532.02 and 288,628.95

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Solution

The fourth proportional to 625,688.02, 938,532.02 and 288,628.95 is: 432,943.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,688.02 : 938,532.02 = 288,628.95 : x
  2. Step 2: Convert to fraction form
    625,688.02/938,532.02 = 288,628.95/x
  3. Step 3: Cross multiply
    625,688.02x = 938,532.02 × 288,628.95
  4. Step 4: Simplify right side
    625,688.02x = 270,887,512,736.73
  5. Step 5: Solve for x
    x = 270,887,512,736.73/625,688.02
  6. Step 6: Final answer
    x = 432,943.42

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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.