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Finding the Fourth Proportional to 662,740.26, 914,607.45 and 376,287

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Solution

The fourth proportional to 662,740.26, 914,607.45 and 376,287 is: 519,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,740.26 : 914,607.45 = 376,287 : x
  2. Step 2: Convert to fraction form
    662,740.26/914,607.45 = 376,287/x
  3. Step 3: Cross multiply
    662,740.26x = 914,607.45 × 376,287
  4. Step 4: Simplify right side
    662,740.26x = 344,154,893,538.15
  5. Step 5: Solve for x
    x = 344,154,893,538.15/662,740.26
  6. Step 6: Final answer
    x = 519,290.76

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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.