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Finding the Fourth Proportional to 570,768.32, 787,658.30 and 329,049.74

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Solution

The fourth proportional to 570,768.32, 787,658.30 and 329,049.74 is: 454,087.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,768.32 : 787,658.30 = 329,049.74 : x
  2. Step 2: Convert to fraction form
    570,768.32/787,658.30 = 329,049.74/x
  3. Step 3: Cross multiply
    570,768.32x = 787,658.30 × 329,049.74
  4. Step 4: Simplify right side
    570,768.32x = 259,178,753,240.30
  5. Step 5: Solve for x
    x = 259,178,753,240.30/570,768.32
  6. Step 6: Final answer
    x = 454,087.49

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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.