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Finding the Fourth Proportional to 1,282,747.84, 1,923,532.80 and 371,723.20

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Solution

The fourth proportional to 1,282,747.84, 1,923,532.80 and 371,723.20 is: 557,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,747.84 : 1,923,532.80 = 371,723.20 : x
  2. Step 2: Convert to fraction form
    1,282,747.84/1,923,532.80 = 371,723.20/x
  3. Step 3: Cross multiply
    1,282,747.84x = 1,923,532.80 × 371,723.20
  4. Step 4: Simplify right side
    1,282,747.84x = 715,021,767,720.96
  5. Step 5: Solve for x
    x = 715,021,767,720.96/1,282,747.84
  6. Step 6: Final answer
    x = 557,414.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.