Home / 3,138,625.60-4,707,938.40-864,145.60

Finding the Fourth Proportional to 3,138,625.60, 4,707,938.40 and 864,145.60

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Solution

The fourth proportional to 3,138,625.60, 4,707,938.40 and 864,145.60 is: 1,296,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,625.60 : 4,707,938.40 = 864,145.60 : x
  2. Step 2: Convert to fraction form
    3,138,625.60/4,707,938.40 = 864,145.60/x
  3. Step 3: Cross multiply
    3,138,625.60x = 4,707,938.40 × 864,145.60
  4. Step 4: Simplify right side
    3,138,625.60x = 4,068,344,253,431.04
  5. Step 5: Solve for x
    x = 4,068,344,253,431.04/3,138,625.60
  6. Step 6: Final answer
    x = 1,296,218.40

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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.