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Finding the Fourth Proportional to 662,342.05, 914,048.82 and 371,976.80

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Solution

The fourth proportional to 662,342.05, 914,048.82 and 371,976.80 is: 513,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,342.05 : 914,048.82 = 371,976.80 : x
  2. Step 2: Convert to fraction form
    662,342.05/914,048.82 = 371,976.80/x
  3. Step 3: Cross multiply
    662,342.05x = 914,048.82 × 371,976.80
  4. Step 4: Simplify right side
    662,342.05x = 340,004,948,677.25
  5. Step 5: Solve for x
    x = 340,004,948,677.25/662,342.05
  6. Step 6: Final answer
    x = 513,337.40

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Double scale
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Similar ratio
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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.