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Finding the Fourth Proportional to 495,343.04, 683,576 and 280,524.92

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Solution

The fourth proportional to 495,343.04, 683,576 and 280,524.92 is: 387,125.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,343.04 : 683,576 = 280,524.92 : x
  2. Step 2: Convert to fraction form
    495,343.04/683,576 = 280,524.92/x
  3. Step 3: Cross multiply
    495,343.04x = 683,576 × 280,524.92
  4. Step 4: Simplify right side
    495,343.04x = 191,760,102,713.92
  5. Step 5: Solve for x
    x = 191,760,102,713.92/495,343.04
  6. Step 6: Final answer
    x = 387,125.86

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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.