Home / 2,092,143.20-3,138,749.40-672,213.20

Finding the Fourth Proportional to 2,092,143.20, 3,138,749.40 and 672,213.20

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Solution

The fourth proportional to 2,092,143.20, 3,138,749.40 and 672,213.20 is: 1,008,491.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092,143.20 : 3,138,749.40 = 672,213.20 : x
  2. Step 2: Convert to fraction form
    2,092,143.20/3,138,749.40 = 672,213.20/x
  3. Step 3: Cross multiply
    2,092,143.20x = 3,138,749.40 × 672,213.20
  4. Step 4: Simplify right side
    2,092,143.20x = 2,109,908,778,172.08
  5. Step 5: Solve for x
    x = 2,109,908,778,172.08/2,092,143.20
  6. Step 6: Final answer
    x = 1,008,491.57

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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.