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Finding the Fourth Proportional to 627,377.84, 865,683.96 and 372,722.48

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Solution

The fourth proportional to 627,377.84, 865,683.96 and 372,722.48 is: 514,299.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,377.84 : 865,683.96 = 372,722.48 : x
  2. Step 2: Convert to fraction form
    627,377.84/865,683.96 = 372,722.48/x
  3. Step 3: Cross multiply
    627,377.84x = 865,683.96 × 372,722.48
  4. Step 4: Simplify right side
    627,377.84x = 322,659,872,467.42
  5. Step 5: Solve for x
    x = 322,659,872,467.42/627,377.84
  6. Step 6: Final answer
    x = 514,299.12

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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.