Home / 1,988,216.28-2,743,816.14-1,128,856.50

Finding the Fourth Proportional to 1,988,216.28, 2,743,816.14 and 1,128,856.50

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Solution

The fourth proportional to 1,988,216.28, 2,743,816.14 and 1,128,856.50 is: 1,557,866.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,216.28 : 2,743,816.14 = 1,128,856.50 : x
  2. Step 2: Convert to fraction form
    1,988,216.28/2,743,816.14 = 1,128,856.50/x
  3. Step 3: Cross multiply
    1,988,216.28x = 2,743,816.14 × 1,128,856.50
  4. Step 4: Simplify right side
    1,988,216.28x = 3,097,374,684,443.91
  5. Step 5: Solve for x
    x = 3,097,374,684,443.91/1,988,216.28
  6. Step 6: Final answer
    x = 1,557,866.07

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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.