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Finding the Fourth Proportional to 647,529.55, 970,740.43 and 248,456.72

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Solution

The fourth proportional to 647,529.55, 970,740.43 and 248,456.72 is: 372,472.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,529.55 : 970,740.43 = 248,456.72 : x
  2. Step 2: Convert to fraction form
    647,529.55/970,740.43 = 248,456.72/x
  3. Step 3: Cross multiply
    647,529.55x = 970,740.43 × 248,456.72
  4. Step 4: Simplify right side
    647,529.55x = 241,186,985,014.90
  5. Step 5: Solve for x
    x = 241,186,985,014.90/647,529.55
  6. Step 6: Final answer
    x = 372,472.56

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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.