Home / 1,008,114.10-1,512,171.15-931,131.70

Finding the Fourth Proportional to 1,008,114.10, 1,512,171.15 and 931,131.70

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Solution

The fourth proportional to 1,008,114.10, 1,512,171.15 and 931,131.70 is: 1,396,697.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,114.10 : 1,512,171.15 = 931,131.70 : x
  2. Step 2: Convert to fraction form
    1,008,114.10/1,512,171.15 = 931,131.70/x
  3. Step 3: Cross multiply
    1,008,114.10x = 1,512,171.15 × 931,131.70
  4. Step 4: Simplify right side
    1,008,114.10x = 1,408,030,493,590.45
  5. Step 5: Solve for x
    x = 1,408,030,493,590.45/1,008,114.10
  6. Step 6: Final answer
    x = 1,396,697.55

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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.