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Finding the Fourth Proportional to 432,869.89, 649,304.79 and 117,326.80

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Solution

The fourth proportional to 432,869.89, 649,304.79 and 117,326.80 is: 175,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,869.89 : 649,304.79 = 117,326.80 : x
  2. Step 2: Convert to fraction form
    432,869.89/649,304.79 = 117,326.80/x
  3. Step 3: Cross multiply
    432,869.89x = 649,304.79 × 117,326.80
  4. Step 4: Simplify right side
    432,869.89x = 76,180,853,235.37
  5. Step 5: Solve for x
    x = 76,180,853,235.37/432,869.89
  6. Step 6: Final answer
    x = 175,990.19

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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.