Home / 495,621.92-683,992.07-280,763.75

Finding the Fourth Proportional to 495,621.92, 683,992.07 and 280,763.75

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Solution

The fourth proportional to 495,621.92, 683,992.07 and 280,763.75 is: 387,473.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,621.92 : 683,992.07 = 280,763.75 : x
  2. Step 2: Convert to fraction form
    495,621.92/683,992.07 = 280,763.75/x
  3. Step 3: Cross multiply
    495,621.92x = 683,992.07 × 280,763.75
  4. Step 4: Simplify right side
    495,621.92x = 192,040,173,719.68
  5. Step 5: Solve for x
    x = 192,040,173,719.68/495,621.92
  6. Step 6: Final answer
    x = 387,473.13

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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.