Home / 1,378,912.55-2,068,369.22-432,357.08

Finding the Fourth Proportional to 1,378,912.55, 2,068,369.22 and 432,357.08

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Solution

The fourth proportional to 1,378,912.55, 2,068,369.22 and 432,357.08 is: 648,535.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,912.55 : 2,068,369.22 = 432,357.08 : x
  2. Step 2: Convert to fraction form
    1,378,912.55/2,068,369.22 = 432,357.08/x
  3. Step 3: Cross multiply
    1,378,912.55x = 2,068,369.22 × 432,357.08
  4. Step 4: Simplify right side
    1,378,912.55x = 894,274,067,060.12
  5. Step 5: Solve for x
    x = 894,274,067,060.12/1,378,912.55
  6. Step 6: Final answer
    x = 648,535.74

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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.