Home / 1,395,821.40-2,084,276.76-1,108,285.56

Finding the Fourth Proportional to 1,395,821.40, 2,084,276.76 and 1,108,285.56

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Solution

The fourth proportional to 1,395,821.40, 2,084,276.76 and 1,108,285.56 is: 1,654,920.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,821.40 : 2,084,276.76 = 1,108,285.56 : x
  2. Step 2: Convert to fraction form
    1,395,821.40/2,084,276.76 = 1,108,285.56/x
  3. Step 3: Cross multiply
    1,395,821.40x = 2,084,276.76 × 1,108,285.56
  4. Step 4: Simplify right side
    1,395,821.40x = 2,309,973,836,151.59
  5. Step 5: Solve for x
    x = 2,309,973,836,151.59/1,395,821.40
  6. Step 6: Final answer
    x = 1,654,920.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.