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Finding the Fourth Proportional to 1,447,865.96, 1,998,108.41 and 874,795.41

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Solution

The fourth proportional to 1,447,865.96, 1,998,108.41 and 874,795.41 is: 1,207,249.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,865.96 : 1,998,108.41 = 874,795.41 : x
  2. Step 2: Convert to fraction form
    1,447,865.96/1,998,108.41 = 874,795.41/x
  3. Step 3: Cross multiply
    1,447,865.96x = 1,998,108.41 × 874,795.41
  4. Step 4: Simplify right side
    1,447,865.96x = 1,747,936,061,376.42
  5. Step 5: Solve for x
    x = 1,747,936,061,376.42/1,447,865.96
  6. Step 6: Final answer
    x = 1,207,249.92

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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.