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Finding the Fourth Proportional to 655,020.30, 982,530.45 and 489,132.30

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Solution

The fourth proportional to 655,020.30, 982,530.45 and 489,132.30 is: 733,698.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,020.30 : 982,530.45 = 489,132.30 : x
  2. Step 2: Convert to fraction form
    655,020.30/982,530.45 = 489,132.30/x
  3. Step 3: Cross multiply
    655,020.30x = 982,530.45 × 489,132.30
  4. Step 4: Simplify right side
    655,020.30x = 480,587,378,828.54
  5. Step 5: Solve for x
    x = 480,587,378,828.54/655,020.30
  6. Step 6: Final answer
    x = 733,698.45

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Similar ratio
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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.