Home / 587,787.52-811,155.66-329,721.67

Finding the Fourth Proportional to 587,787.52, 811,155.66 and 329,721.67

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Solution

The fourth proportional to 587,787.52, 811,155.66 and 329,721.67 is: 455,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,787.52 : 811,155.66 = 329,721.67 : x
  2. Step 2: Convert to fraction form
    587,787.52/811,155.66 = 329,721.67/x
  3. Step 3: Cross multiply
    587,787.52x = 811,155.66 × 329,721.67
  4. Step 4: Simplify right side
    587,787.52x = 267,455,598,845.15
  5. Step 5: Solve for x
    x = 267,455,598,845.15/587,787.52
  6. Step 6: Final answer
    x = 455,020.89

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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.