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Finding the Fourth Proportional to 887,617.72, 1,331,295.36 and 326,521

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Solution

The fourth proportional to 887,617.72, 1,331,295.36 and 326,521 is: 489,733.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,617.72 : 1,331,295.36 = 326,521 : x
  2. Step 2: Convert to fraction form
    887,617.72/1,331,295.36 = 326,521/x
  3. Step 3: Cross multiply
    887,617.72x = 1,331,295.36 × 326,521
  4. Step 4: Simplify right side
    887,617.72x = 434,695,892,242.56
  5. Step 5: Solve for x
    x = 434,695,892,242.56/887,617.72
  6. Step 6: Final answer
    x = 489,733.23

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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.