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Finding the Fourth Proportional to 662,810.50, 914,680.31 and 376,375.47

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Solution

The fourth proportional to 662,810.50, 914,680.31 and 376,375.47 is: 519,399.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,810.50 : 914,680.31 = 376,375.47 : x
  2. Step 2: Convert to fraction form
    662,810.50/914,680.31 = 376,375.47/x
  3. Step 3: Cross multiply
    662,810.50x = 914,680.31 × 376,375.47
  4. Step 4: Simplify right side
    662,810.50x = 344,263,231,576.00
  5. Step 5: Solve for x
    x = 344,263,231,576.00/662,810.50
  6. Step 6: Final answer
    x = 519,399.18

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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.