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Finding the Fourth Proportional to 662,889.12, 914,793.24 and 376,415.22

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Solution

The fourth proportional to 662,889.12, 914,793.24 and 376,415.22 is: 519,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,889.12 : 914,793.24 = 376,415.22 : x
  2. Step 2: Convert to fraction form
    662,889.12/914,793.24 = 376,415.22/x
  3. Step 3: Cross multiply
    662,889.12x = 914,793.24 × 376,415.22
  4. Step 4: Simplify right side
    662,889.12x = 344,342,098,689.11
  5. Step 5: Solve for x
    x = 344,342,098,689.11/662,889.12
  6. Step 6: Final answer
    x = 519,456.56

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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.