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Finding the Fourth Proportional to 647,523.70, 970,731.74 and 248,450.90

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Solution

The fourth proportional to 647,523.70, 970,731.74 and 248,450.90 is: 372,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,523.70 : 970,731.74 = 248,450.90 : x
  2. Step 2: Convert to fraction form
    647,523.70/970,731.74 = 248,450.90/x
  3. Step 3: Cross multiply
    647,523.70x = 970,731.74 × 248,450.90
  4. Step 4: Simplify right side
    647,523.70x = 241,179,174,461.57
  5. Step 5: Solve for x
    x = 241,179,174,461.57/647,523.70
  6. Step 6: Final answer
    x = 372,463.86

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1.5x scale

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.