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Finding the Fourth Proportional to 662,342.55, 914,049.51 and 371,977.30

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Solution

The fourth proportional to 662,342.55, 914,049.51 and 371,977.30 is: 513,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,342.55 : 914,049.51 = 371,977.30 : x
  2. Step 2: Convert to fraction form
    662,342.55/914,049.51 = 371,977.30/x
  3. Step 3: Cross multiply
    662,342.55x = 914,049.51 × 371,977.30
  4. Step 4: Simplify right side
    662,342.55x = 340,005,668,796.12
  5. Step 5: Solve for x
    x = 340,005,668,796.12/662,342.55
  6. Step 6: Final answer
    x = 513,338.10

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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.