Home / 1,327,259.76-1,987,789.53-1,220,085.81

Finding the Fourth Proportional to 1,327,259.76, 1,987,789.53 and 1,220,085.81

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Solution

The fourth proportional to 1,327,259.76, 1,987,789.53 and 1,220,085.81 is: 1,827,278.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,259.76 : 1,987,789.53 = 1,220,085.81 : x
  2. Step 2: Convert to fraction form
    1,327,259.76/1,987,789.53 = 1,220,085.81/x
  3. Step 3: Cross multiply
    1,327,259.76x = 1,987,789.53 × 1,220,085.81
  4. Step 4: Simplify right side
    1,327,259.76x = 2,425,273,798,819.57
  5. Step 5: Solve for x
    x = 2,425,273,798,819.57/1,327,259.76
  6. Step 6: Final answer
    x = 1,827,278.93

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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.