Home / 699,081.19-964,722.84-393,157.46

Finding the Fourth Proportional to 699,081.19, 964,722.84 and 393,157.46

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Solution

The fourth proportional to 699,081.19, 964,722.84 and 393,157.46 is: 542,552.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,081.19 : 964,722.84 = 393,157.46 : x
  2. Step 2: Convert to fraction form
    699,081.19/964,722.84 = 393,157.46/x
  3. Step 3: Cross multiply
    699,081.19x = 964,722.84 × 393,157.46
  4. Step 4: Simplify right side
    699,081.19x = 379,287,981,378.39
  5. Step 5: Solve for x
    x = 379,287,981,378.39/699,081.19
  6. Step 6: Final answer
    x = 542,552.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.