Home / 495,437.18-683,680.46-280,578.80

Finding the Fourth Proportional to 495,437.18, 683,680.46 and 280,578.80

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Solution

The fourth proportional to 495,437.18, 683,680.46 and 280,578.80 is: 387,185.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,437.18 : 683,680.46 = 280,578.80 : x
  2. Step 2: Convert to fraction form
    495,437.18/683,680.46 = 280,578.80/x
  3. Step 3: Cross multiply
    495,437.18x = 683,680.46 × 280,578.80
  4. Step 4: Simplify right side
    495,437.18x = 191,826,243,356.56
  5. Step 5: Solve for x
    x = 191,826,243,356.56/495,437.18
  6. Step 6: Final answer
    x = 387,185.81

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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.