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Finding the Fourth Proportional to 653,227.71, 979,460.20 and 253,401.28

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Solution

The fourth proportional to 653,227.71, 979,460.20 and 253,401.28 is: 379,953.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,227.71 : 979,460.20 = 253,401.28 : x
  2. Step 2: Convert to fraction form
    653,227.71/979,460.20 = 253,401.28/x
  3. Step 3: Cross multiply
    653,227.71x = 979,460.20 × 253,401.28
  4. Step 4: Simplify right side
    653,227.71x = 248,196,466,257.16
  5. Step 5: Solve for x
    x = 248,196,466,257.16/653,227.71
  6. Step 6: Final answer
    x = 379,953.98

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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.