Home / 495,333.12-683,567.84-280,467.52

Finding the Fourth Proportional to 495,333.12, 683,567.84 and 280,467.52

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Solution

The fourth proportional to 495,333.12, 683,567.84 and 280,467.52 is: 387,049.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,333.12 : 683,567.84 = 280,467.52 : x
  2. Step 2: Convert to fraction form
    495,333.12/683,567.84 = 280,467.52/x
  3. Step 3: Cross multiply
    495,333.12x = 683,567.84 × 280,467.52
  4. Step 4: Simplify right side
    495,333.12x = 191,718,576,836.56
  5. Step 5: Solve for x
    x = 191,718,576,836.56/495,333.12
  6. Step 6: Final answer
    x = 387,049.78

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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.