Home / 2,198,813.40-3,297,345.30-778,138.20

Finding the Fourth Proportional to 2,198,813.40, 3,297,345.30 and 778,138.20

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Solution

The fourth proportional to 2,198,813.40, 3,297,345.30 and 778,138.20 is: 1,166,897.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198,813.40 : 3,297,345.30 = 778,138.20 : x
  2. Step 2: Convert to fraction form
    2,198,813.40/3,297,345.30 = 778,138.20/x
  3. Step 3: Cross multiply
    2,198,813.40x = 3,297,345.30 × 778,138.20
  4. Step 4: Simplify right side
    2,198,813.40x = 2,565,790,336,520.46
  5. Step 5: Solve for x
    x = 2,565,790,336,520.46/2,198,813.40
  6. Step 6: Final answer
    x = 1,166,897.72

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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.