Home / 3,138,279.80-4,707,419.70-894,126.20

Finding the Fourth Proportional to 3,138,279.80, 4,707,419.70 and 894,126.20

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Solution

The fourth proportional to 3,138,279.80, 4,707,419.70 and 894,126.20 is: 1,341,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,279.80 : 4,707,419.70 = 894,126.20 : x
  2. Step 2: Convert to fraction form
    3,138,279.80/4,707,419.70 = 894,126.20/x
  3. Step 3: Cross multiply
    3,138,279.80x = 4,707,419.70 × 894,126.20
  4. Step 4: Simplify right side
    3,138,279.80x = 4,209,027,288,166.14
  5. Step 5: Solve for x
    x = 4,209,027,288,166.14/3,138,279.80
  6. Step 6: Final answer
    x = 1,341,189.30

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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.