Home / 1,378,948.60-1,901,379.90-970,919.92

Finding the Fourth Proportional to 1,378,948.60, 1,901,379.90 and 970,919.92

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Solution

The fourth proportional to 1,378,948.60, 1,901,379.90 and 970,919.92 is: 1,338,764.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,948.60 : 1,901,379.90 = 970,919.92 : x
  2. Step 2: Convert to fraction form
    1,378,948.60/1,901,379.90 = 970,919.92/x
  3. Step 3: Cross multiply
    1,378,948.60x = 1,901,379.90 × 970,919.92
  4. Step 4: Simplify right side
    1,378,948.60x = 1,846,087,620,397.61
  5. Step 5: Solve for x
    x = 1,846,087,620,397.61/1,378,948.60
  6. Step 6: Final answer
    x = 1,338,764.64

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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.