Home / 1,378,932.34-2,068,399.05-432,376.87

Finding the Fourth Proportional to 1,378,932.34, 2,068,399.05 and 432,376.87

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Solution

The fourth proportional to 1,378,932.34, 2,068,399.05 and 432,376.87 is: 648,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,932.34 : 2,068,399.05 = 432,376.87 : x
  2. Step 2: Convert to fraction form
    1,378,932.34/2,068,399.05 = 432,376.87/x
  3. Step 3: Cross multiply
    1,378,932.34x = 2,068,399.05 × 432,376.87
  4. Step 4: Simplify right side
    1,378,932.34x = 894,327,907,149.97
  5. Step 5: Solve for x
    x = 894,327,907,149.97/1,378,932.34
  6. Step 6: Final answer
    x = 648,565.47

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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.