Home / 495,328.20-683,560.86-280,462.52

Finding the Fourth Proportional to 495,328.20, 683,560.86 and 280,462.52

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Solution

The fourth proportional to 495,328.20, 683,560.86 and 280,462.52 is: 387,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,328.20 : 683,560.86 = 280,462.52 : x
  2. Step 2: Convert to fraction form
    495,328.20/683,560.86 = 280,462.52/x
  3. Step 3: Cross multiply
    495,328.20x = 683,560.86 × 280,462.52
  4. Step 4: Simplify right side
    495,328.20x = 191,713,201,368.97
  5. Step 5: Solve for x
    x = 191,713,201,368.97/495,328.20
  6. Step 6: Final answer
    x = 387,042.78

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1.5x scale

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.