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Finding the Fourth Proportional to 489,610.40, 733,832.40 and 205,300.40

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Solution

The fourth proportional to 489,610.40, 733,832.40 and 205,300.40 is: 307,706.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,610.40 : 733,832.40 = 205,300.40 : x
  2. Step 2: Convert to fraction form
    489,610.40/733,832.40 = 205,300.40/x
  3. Step 3: Cross multiply
    489,610.40x = 733,832.40 × 205,300.40
  4. Step 4: Simplify right side
    489,610.40x = 150,656,085,252.96
  5. Step 5: Solve for x
    x = 150,656,085,252.96/489,610.40
  6. Step 6: Final answer
    x = 307,706.06

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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.