Home / 465,706.89-642,734.93-284,380.66

Finding the Fourth Proportional to 465,706.89, 642,734.93 and 284,380.66

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Solution

The fourth proportional to 465,706.89, 642,734.93 and 284,380.66 is: 392,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,706.89 : 642,734.93 = 284,380.66 : x
  2. Step 2: Convert to fraction form
    465,706.89/642,734.93 = 284,380.66/x
  3. Step 3: Cross multiply
    465,706.89x = 642,734.93 × 284,380.66
  4. Step 4: Simplify right side
    465,706.89x = 182,781,383,598.45
  5. Step 5: Solve for x
    x = 182,781,383,598.45/465,706.89
  6. Step 6: Final answer
    x = 392,481.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.