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Finding the Fourth Proportional to 662,937.38, 914,853.59 and 361,131.38

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Solution

The fourth proportional to 662,937.38, 914,853.59 and 361,131.38 is: 498,361.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,937.38 : 914,853.59 = 361,131.38 : x
  2. Step 2: Convert to fraction form
    662,937.38/914,853.59 = 361,131.38/x
  3. Step 3: Cross multiply
    662,937.38x = 914,853.59 × 361,131.38
  4. Step 4: Simplify right side
    662,937.38x = 330,382,333,074.73
  5. Step 5: Solve for x
    x = 330,382,333,074.73/662,937.38
  6. Step 6: Final answer
    x = 498,361.30

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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.