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Finding the Fourth Proportional to 557,487.92, 769,568.84 and 376,445.04

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Solution

The fourth proportional to 557,487.92, 769,568.84 and 376,445.04 is: 519,653.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,487.92 : 769,568.84 = 376,445.04 : x
  2. Step 2: Convert to fraction form
    557,487.92/769,568.84 = 376,445.04/x
  3. Step 3: Cross multiply
    557,487.92x = 769,568.84 × 376,445.04
  4. Step 4: Simplify right side
    557,487.92x = 289,700,372,756.55
  5. Step 5: Solve for x
    x = 289,700,372,756.55/557,487.92
  6. Step 6: Final answer
    x = 519,653.18

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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.