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Finding the Fourth Proportional to 625,712.34, 937,845.57 and 288,045

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Solution

The fourth proportional to 625,712.34, 937,845.57 and 288,045 is: 431,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,712.34 : 937,845.57 = 288,045 : x
  2. Step 2: Convert to fraction form
    625,712.34/937,845.57 = 288,045/x
  3. Step 3: Cross multiply
    625,712.34x = 937,845.57 × 288,045
  4. Step 4: Simplify right side
    625,712.34x = 270,141,727,210.65
  5. Step 5: Solve for x
    x = 270,141,727,210.65/625,712.34
  6. Step 6: Final answer
    x = 431,734.70

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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.