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Finding the Fourth Proportional to 702,553.79, 969,513.52 and 392,460.43

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Solution

The fourth proportional to 702,553.79, 969,513.52 and 392,460.43 is: 541,589.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,553.79 : 969,513.52 = 392,460.43 : x
  2. Step 2: Convert to fraction form
    702,553.79/969,513.52 = 392,460.43/x
  3. Step 3: Cross multiply
    702,553.79x = 969,513.52 × 392,460.43
  4. Step 4: Simplify right side
    702,553.79x = 380,495,692,950.01
  5. Step 5: Solve for x
    x = 380,495,692,950.01/702,553.79
  6. Step 6: Final answer
    x = 541,589.41

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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.