Home / 495,320.14-683,542.20-280,460.55

Finding the Fourth Proportional to 495,320.14, 683,542.20 and 280,460.55

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Solution

The fourth proportional to 495,320.14, 683,542.20 and 280,460.55 is: 387,035.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,320.14 : 683,542.20 = 280,460.55 : x
  2. Step 2: Convert to fraction form
    495,320.14/683,542.20 = 280,460.55/x
  3. Step 3: Cross multiply
    495,320.14x = 683,542.20 × 280,460.55
  4. Step 4: Simplify right side
    495,320.14x = 191,706,617,942.50
  5. Step 5: Solve for x
    x = 191,706,617,942.50/495,320.14
  6. Step 6: Final answer
    x = 387,035.78

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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.