Home / 3,531,907.20-5,298,249.60-1,288,531.20

Finding the Fourth Proportional to 3,531,907.20, 5,298,249.60 and 1,288,531.20

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Solution

The fourth proportional to 3,531,907.20, 5,298,249.60 and 1,288,531.20 is: 1,932,938.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531,907.20 : 5,298,249.60 = 1,288,531.20 : x
  2. Step 2: Convert to fraction form
    3,531,907.20/5,298,249.60 = 1,288,531.20/x
  3. Step 3: Cross multiply
    3,531,907.20x = 5,298,249.60 × 1,288,531.20
  4. Step 4: Simplify right side
    3,531,907.20x = 6,826,959,914,987.52
  5. Step 5: Solve for x
    x = 6,826,959,914,987.52/3,531,907.20
  6. Step 6: Final answer
    x = 1,932,938.64

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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.