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Finding the Fourth Proportional to 486,579.92, 729,790.63 and 170,963.15

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Solution

The fourth proportional to 486,579.92, 729,790.63 and 170,963.15 is: 256,416.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,579.92 : 729,790.63 = 170,963.15 : x
  2. Step 2: Convert to fraction form
    486,579.92/729,790.63 = 170,963.15/x
  3. Step 3: Cross multiply
    486,579.92x = 729,790.63 × 170,963.15
  4. Step 4: Simplify right side
    486,579.92x = 124,767,300,868.92
  5. Step 5: Solve for x
    x = 124,767,300,868.92/486,579.92
  6. Step 6: Final answer
    x = 256,416.87

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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.