Home / 495,431.10-683,710.92-280,566.54

Finding the Fourth Proportional to 495,431.10, 683,710.92 and 280,566.54

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Solution

The fourth proportional to 495,431.10, 683,710.92 and 280,566.54 is: 387,190.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,431.10 : 683,710.92 = 280,566.54 : x
  2. Step 2: Convert to fraction form
    495,431.10/683,710.92 = 280,566.54/x
  3. Step 3: Cross multiply
    495,431.10x = 683,710.92 × 280,566.54
  4. Step 4: Simplify right side
    495,431.10x = 191,826,407,184.62
  5. Step 5: Solve for x
    x = 191,826,407,184.62/495,431.10
  6. Step 6: Final answer
    x = 387,190.89

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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.