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Finding the Fourth Proportional to 646,717.91, 970,227.02 and 220,257.42

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Solution

The fourth proportional to 646,717.91, 970,227.02 and 220,257.42 is: 330,437.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,717.91 : 970,227.02 = 220,257.42 : x
  2. Step 2: Convert to fraction form
    646,717.91/970,227.02 = 220,257.42/x
  3. Step 3: Cross multiply
    646,717.91x = 970,227.02 × 220,257.42
  4. Step 4: Simplify right side
    646,717.91x = 213,699,700,239.49
  5. Step 5: Solve for x
    x = 213,699,700,239.49/646,717.91
  6. Step 6: Final answer
    x = 330,437.27

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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.