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Finding the Fourth Proportional to 662,739.26, 914,606.07 and 376,286

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Solution

The fourth proportional to 662,739.26, 914,606.07 and 376,286 is: 519,289.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,739.26 : 914,606.07 = 376,286 : x
  2. Step 2: Convert to fraction form
    662,739.26/914,606.07 = 376,286/x
  3. Step 3: Cross multiply
    662,739.26x = 914,606.07 × 376,286
  4. Step 4: Simplify right side
    662,739.26x = 344,153,459,656.02
  5. Step 5: Solve for x
    x = 344,153,459,656.02/662,739.26
  6. Step 6: Final answer
    x = 519,289.38

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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.