Home / 587,787.12-811,155.11-329,721.27

Finding the Fourth Proportional to 587,787.12, 811,155.11 and 329,721.27

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Solution

The fourth proportional to 587,787.12, 811,155.11 and 329,721.27 is: 455,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,787.12 : 811,155.11 = 329,721.27 : x
  2. Step 2: Convert to fraction form
    587,787.12/811,155.11 = 329,721.27/x
  3. Step 3: Cross multiply
    587,787.12x = 811,155.11 × 329,721.27
  4. Step 4: Simplify right side
    587,787.12x = 267,455,093,036.19
  5. Step 5: Solve for x
    x = 267,455,093,036.19/587,787.12
  6. Step 6: Final answer
    x = 455,020.34

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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.