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Finding the Fourth Proportional to 485,899.32, 728,853.84 and 170,363.82

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Solution

The fourth proportional to 485,899.32, 728,853.84 and 170,363.82 is: 255,547.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,899.32 : 728,853.84 = 170,363.82 : x
  2. Step 2: Convert to fraction form
    485,899.32/728,853.84 = 170,363.82/x
  3. Step 3: Cross multiply
    485,899.32x = 728,853.84 × 170,363.82
  4. Step 4: Simplify right side
    485,899.32x = 124,170,324,404.07
  5. Step 5: Solve for x
    x = 124,170,324,404.07/485,899.32
  6. Step 6: Final answer
    x = 255,547.43

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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.