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Finding the Fourth Proportional to 662,878.48, 914,778.57 and 376,404.58

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Solution

The fourth proportional to 662,878.48, 914,778.57 and 376,404.58 is: 519,441.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,878.48 : 914,778.57 = 376,404.58 : x
  2. Step 2: Convert to fraction form
    662,878.48/914,778.57 = 376,404.58/x
  3. Step 3: Cross multiply
    662,878.48x = 914,778.57 × 376,404.58
  4. Step 4: Simplify right side
    662,878.48x = 344,326,843,433.85
  5. Step 5: Solve for x
    x = 344,326,843,433.85/662,878.48
  6. Step 6: Final answer
    x = 519,441.88

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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.