Home / 2,171,223.12-3,255,959.52-654,436.56

Finding the Fourth Proportional to 2,171,223.12, 3,255,959.52 and 654,436.56

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Solution

The fourth proportional to 2,171,223.12, 3,255,959.52 and 654,436.56 is: 981,391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,223.12 : 3,255,959.52 = 654,436.56 : x
  2. Step 2: Convert to fraction form
    2,171,223.12/3,255,959.52 = 654,436.56/x
  3. Step 3: Cross multiply
    2,171,223.12x = 3,255,959.52 × 654,436.56
  4. Step 4: Simplify right side
    2,171,223.12x = 2,130,818,947,768.05
  5. Step 5: Solve for x
    x = 2,130,818,947,768.05/2,171,223.12
  6. Step 6: Final answer
    x = 981,391.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.