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Finding the Fourth Proportional to 625,925.76, 863,754.24 and 371,124.48

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Solution

The fourth proportional to 625,925.76, 863,754.24 and 371,124.48 is: 512,137.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,925.76 : 863,754.24 = 371,124.48 : x
  2. Step 2: Convert to fraction form
    625,925.76/863,754.24 = 371,124.48/x
  3. Step 3: Cross multiply
    625,925.76x = 863,754.24 × 371,124.48
  4. Step 4: Simplify right side
    625,925.76x = 320,560,343,167.80
  5. Step 5: Solve for x
    x = 320,560,343,167.80/625,925.76
  6. Step 6: Final answer
    x = 512,137.96

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1.5x scale

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.