Home / 1,961,420.76-2,706,829.92-1,101,963.78

Finding the Fourth Proportional to 1,961,420.76, 2,706,829.92 and 1,101,963.78

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Solution

The fourth proportional to 1,961,420.76, 2,706,829.92 and 1,101,963.78 is: 1,520,748.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,420.76 : 2,706,829.92 = 1,101,963.78 : x
  2. Step 2: Convert to fraction form
    1,961,420.76/2,706,829.92 = 1,101,963.78/x
  3. Step 3: Cross multiply
    1,961,420.76x = 2,706,829.92 × 1,101,963.78
  4. Step 4: Simplify right side
    1,961,420.76x = 2,982,828,530,460.30
  5. Step 5: Solve for x
    x = 2,982,828,530,460.30/1,961,420.76
  6. Step 6: Final answer
    x = 1,520,748.93

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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.