Home / 489,213.30-733,856.40-173,629.20

Finding the Fourth Proportional to 489,213.30, 733,856.40 and 173,629.20

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Solution

The fourth proportional to 489,213.30, 733,856.40 and 173,629.20 is: 260,456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,213.30 : 733,856.40 = 173,629.20 : x
  2. Step 2: Convert to fraction form
    489,213.30/733,856.40 = 173,629.20/x
  3. Step 3: Cross multiply
    489,213.30x = 733,856.40 × 173,629.20
  4. Step 4: Simplify right side
    489,213.30x = 127,418,899,646.88
  5. Step 5: Solve for x
    x = 127,418,899,646.88/489,213.30
  6. Step 6: Final answer
    x = 260,456.74

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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.