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Finding the Fourth Proportional to 755,998.20, 998,664.12 and 755,998.20

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Solution

The fourth proportional to 755,998.20, 998,664.12 and 755,998.20 is: 998,664.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,998.20 : 998,664.12 = 755,998.20 : x
  2. Step 2: Convert to fraction form
    755,998.20/998,664.12 = 755,998.20/x
  3. Step 3: Cross multiply
    755,998.20x = 998,664.12 × 755,998.20
  4. Step 4: Simplify right side
    755,998.20x = 754,988,277,124.58
  5. Step 5: Solve for x
    x = 754,988,277,124.58/755,998.20
  6. Step 6: Final answer
    x = 998,664.12

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.