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Finding the Fourth Proportional to 662,638.32, 914,463 and 360,843.12

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Solution

The fourth proportional to 662,638.32, 914,463 and 360,843.12 is: 497,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,638.32 : 914,463 = 360,843.12 : x
  2. Step 2: Convert to fraction form
    662,638.32/914,463 = 360,843.12/x
  3. Step 3: Cross multiply
    662,638.32x = 914,463 × 360,843.12
  4. Step 4: Simplify right side
    662,638.32x = 329,977,682,044.56
  5. Step 5: Solve for x
    x = 329,977,682,044.56/662,638.32
  6. Step 6: Final answer
    x = 497,975.55

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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.