Home / 1,378,849.89-2,068,275.44-432,294.42

Finding the Fourth Proportional to 1,378,849.89, 2,068,275.44 and 432,294.42

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Solution

The fourth proportional to 1,378,849.89, 2,068,275.44 and 432,294.42 is: 648,441.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,849.89 : 2,068,275.44 = 432,294.42 : x
  2. Step 2: Convert to fraction form
    1,378,849.89/2,068,275.44 = 432,294.42/x
  3. Step 3: Cross multiply
    1,378,849.89x = 2,068,275.44 × 432,294.42
  4. Step 4: Simplify right side
    1,378,849.89x = 894,103,932,815.78
  5. Step 5: Solve for x
    x = 894,103,932,815.78/1,378,849.89
  6. Step 6: Final answer
    x = 648,441.82

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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.