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Finding the Fourth Proportional to 570,761.37, 787,648.73 and 329,042.79

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Solution

The fourth proportional to 570,761.37, 787,648.73 and 329,042.79 is: 454,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,761.37 : 787,648.73 = 329,042.79 : x
  2. Step 2: Convert to fraction form
    570,761.37/787,648.73 = 329,042.79/x
  3. Step 3: Cross multiply
    570,761.37x = 787,648.73 × 329,042.79
  4. Step 4: Simplify right side
    570,761.37x = 259,170,134,013.94
  5. Step 5: Solve for x
    x = 259,170,134,013.94/570,761.37
  6. Step 6: Final answer
    x = 454,077.92

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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.