Home / 655,839.63-905,123.24-383,891.04

Finding the Fourth Proportional to 655,839.63, 905,123.24 and 383,891.04

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Solution

The fourth proportional to 655,839.63, 905,123.24 and 383,891.04 is: 529,807.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,839.63 : 905,123.24 = 383,891.04 : x
  2. Step 2: Convert to fraction form
    655,839.63/905,123.24 = 383,891.04/x
  3. Step 3: Cross multiply
    655,839.63x = 905,123.24 × 383,891.04
  4. Step 4: Simplify right side
    655,839.63x = 347,468,700,012.31
  5. Step 5: Solve for x
    x = 347,468,700,012.31/655,839.63
  6. Step 6: Final answer
    x = 529,807.42

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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.