Home / 2,198,678.20-3,298,017.30-778,877.80

Finding the Fourth Proportional to 2,198,678.20, 3,298,017.30 and 778,877.80

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Solution

The fourth proportional to 2,198,678.20, 3,298,017.30 and 778,877.80 is: 1,168,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198,678.20 : 3,298,017.30 = 778,877.80 : x
  2. Step 2: Convert to fraction form
    2,198,678.20/3,298,017.30 = 778,877.80/x
  3. Step 3: Cross multiply
    2,198,678.20x = 3,298,017.30 × 778,877.80
  4. Step 4: Simplify right side
    2,198,678.20x = 2,568,752,458,985.94
  5. Step 5: Solve for x
    x = 2,568,752,458,985.94/2,198,678.20
  6. Step 6: Final answer
    x = 1,168,316.70

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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.