Home / 492,789.67-680,195.18-288,884.73

Finding the Fourth Proportional to 492,789.67, 680,195.18 and 288,884.73

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Solution

The fourth proportional to 492,789.67, 680,195.18 and 288,884.73 is: 398,746.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,789.67 : 680,195.18 = 288,884.73 : x
  2. Step 2: Convert to fraction form
    492,789.67/680,195.18 = 288,884.73/x
  3. Step 3: Cross multiply
    492,789.67x = 680,195.18 × 288,884.73
  4. Step 4: Simplify right side
    492,789.67x = 196,497,997,881.73
  5. Step 5: Solve for x
    x = 196,497,997,881.73/492,789.67
  6. Step 6: Final answer
    x = 398,746.18

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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.