Home / 495,183.60-683,339.76-280,321.92

Finding the Fourth Proportional to 495,183.60, 683,339.76 and 280,321.92

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Solution

The fourth proportional to 495,183.60, 683,339.76 and 280,321.92 is: 386,836.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,183.60 : 683,339.76 = 280,321.92 : x
  2. Step 2: Convert to fraction form
    495,183.60/683,339.76 = 280,321.92/x
  3. Step 3: Cross multiply
    495,183.60x = 683,339.76 × 280,321.92
  4. Step 4: Simplify right side
    495,183.60x = 191,555,113,535.54
  5. Step 5: Solve for x
    x = 191,555,113,535.54/495,183.60
  6. Step 6: Final answer
    x = 386,836.55

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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.