Home / 1,485,372.33-2,049,862.55-840,778.79

Finding the Fourth Proportional to 1,485,372.33, 2,049,862.55 and 840,778.79

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Solution

The fourth proportional to 1,485,372.33, 2,049,862.55 and 840,778.79 is: 1,160,302.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,372.33 : 2,049,862.55 = 840,778.79 : x
  2. Step 2: Convert to fraction form
    1,485,372.33/2,049,862.55 = 840,778.79/x
  3. Step 3: Cross multiply
    1,485,372.33x = 2,049,862.55 × 840,778.79
  4. Step 4: Simplify right side
    1,485,372.33x = 1,723,480,940,002.11
  5. Step 5: Solve for x
    x = 1,723,480,940,002.11/1,485,372.33
  6. Step 6: Final answer
    x = 1,160,302.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.