Home / 527,122.76-790,732.73-172,138.64

Finding the Fourth Proportional to 527,122.76, 790,732.73 and 172,138.64

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Solution

The fourth proportional to 527,122.76, 790,732.73 and 172,138.64 is: 258,223.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,122.76 : 790,732.73 = 172,138.64 : x
  2. Step 2: Convert to fraction form
    527,122.76/790,732.73 = 172,138.64/x
  3. Step 3: Cross multiply
    527,122.76x = 790,732.73 × 172,138.64
  4. Step 4: Simplify right side
    527,122.76x = 136,115,653,222.37
  5. Step 5: Solve for x
    x = 136,115,653,222.37/527,122.76
  6. Step 6: Final answer
    x = 258,223.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.