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Finding the Fourth Proportional to 625,927.76, 863,757 and 371,126.48

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Solution

The fourth proportional to 625,927.76, 863,757 and 371,126.48 is: 512,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,927.76 : 863,757 = 371,126.48 : x
  2. Step 2: Convert to fraction form
    625,927.76/863,757 = 371,126.48/x
  3. Step 3: Cross multiply
    625,927.76x = 863,757 × 371,126.48
  4. Step 4: Simplify right side
    625,927.76x = 320,563,094,985.36
  5. Step 5: Solve for x
    x = 320,563,094,985.36/625,927.76
  6. Step 6: Final answer
    x = 512,140.72

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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.