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Finding the Fourth Proportional to 644,614.39, 966,672.51 and 218,036.80

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Solution

The fourth proportional to 644,614.39, 966,672.51 and 218,036.80 is: 326,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,614.39 : 966,672.51 = 218,036.80 : x
  2. Step 2: Convert to fraction form
    644,614.39/966,672.51 = 218,036.80/x
  3. Step 3: Cross multiply
    644,614.39x = 966,672.51 × 218,036.80
  4. Step 4: Simplify right side
    644,614.39x = 210,770,180,728.37
  5. Step 5: Solve for x
    x = 210,770,180,728.37/644,614.39
  6. Step 6: Final answer
    x = 326,970.95

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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.