Home / 1,008,186.80-1,512,280.20-931,204.40

Finding the Fourth Proportional to 1,008,186.80, 1,512,280.20 and 931,204.40

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Solution

The fourth proportional to 1,008,186.80, 1,512,280.20 and 931,204.40 is: 1,396,806.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,186.80 : 1,512,280.20 = 931,204.40 : x
  2. Step 2: Convert to fraction form
    1,008,186.80/1,512,280.20 = 931,204.40/x
  3. Step 3: Cross multiply
    1,008,186.80x = 1,512,280.20 × 931,204.40
  4. Step 4: Simplify right side
    1,008,186.80x = 1,408,241,976,272.88
  5. Step 5: Solve for x
    x = 1,408,241,976,272.88/1,008,186.80
  6. Step 6: Final answer
    x = 1,396,806.60

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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.