Home / 495,650.20-683,998.98-280,830.04

Finding the Fourth Proportional to 495,650.20, 683,998.98 and 280,830.04

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Solution

The fourth proportional to 495,650.20, 683,998.98 and 280,830.04 is: 387,546.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,650.20 : 683,998.98 = 280,830.04 : x
  2. Step 2: Convert to fraction form
    495,650.20/683,998.98 = 280,830.04/x
  3. Step 3: Cross multiply
    495,650.20x = 683,998.98 × 280,830.04
  4. Step 4: Simplify right side
    495,650.20x = 192,087,460,913.36
  5. Step 5: Solve for x
    x = 192,087,460,913.36/495,650.20
  6. Step 6: Final answer
    x = 387,546.42

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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.