Home / 495,119.86-683,281.68-280,255.31

Finding the Fourth Proportional to 495,119.86, 683,281.68 and 280,255.31

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Solution

The fourth proportional to 495,119.86, 683,281.68 and 280,255.31 is: 386,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,119.86 : 683,281.68 = 280,255.31 : x
  2. Step 2: Convert to fraction form
    495,119.86/683,281.68 = 280,255.31/x
  3. Step 3: Cross multiply
    495,119.86x = 683,281.68 × 280,255.31
  4. Step 4: Simplify right side
    495,119.86x = 191,493,317,140.66
  5. Step 5: Solve for x
    x = 191,493,317,140.66/495,119.86
  6. Step 6: Final answer
    x = 386,761.54

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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.