Home / 2,109,203.78-2,910,686.76-1,142,312

Finding the Fourth Proportional to 2,109,203.78, 2,910,686.76 and 1,142,312

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Solution

The fourth proportional to 2,109,203.78, 2,910,686.76 and 1,142,312 is: 1,576,382.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,203.78 : 2,910,686.76 = 1,142,312 : x
  2. Step 2: Convert to fraction form
    2,109,203.78/2,910,686.76 = 1,142,312/x
  3. Step 3: Cross multiply
    2,109,203.78x = 2,910,686.76 × 1,142,312
  4. Step 4: Simplify right side
    2,109,203.78x = 3,324,912,414,189.12
  5. Step 5: Solve for x
    x = 3,324,912,414,189.12/2,109,203.78
  6. Step 6: Final answer
    x = 1,576,382.73

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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.