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Finding the Fourth Proportional to 647,519.70, 970,725.75 and 248,446.89

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Solution

The fourth proportional to 647,519.70, 970,725.75 and 248,446.89 is: 372,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,519.70 : 970,725.75 = 248,446.89 : x
  2. Step 2: Convert to fraction form
    647,519.70/970,725.75 = 248,446.89/x
  3. Step 3: Cross multiply
    647,519.70x = 970,725.75 × 248,446.89
  4. Step 4: Simplify right side
    647,519.70x = 241,173,793,630.42
  5. Step 5: Solve for x
    x = 241,173,793,630.42/647,519.70
  6. Step 6: Final answer
    x = 372,457.85

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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.