Home / 2,141,456.64-3,212,660.16-645,440.64

Finding the Fourth Proportional to 2,141,456.64, 3,212,660.16 and 645,440.64

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Solution

The fourth proportional to 2,141,456.64, 3,212,660.16 and 645,440.64 is: 968,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141,456.64 : 3,212,660.16 = 645,440.64 : x
  2. Step 2: Convert to fraction form
    2,141,456.64/3,212,660.16 = 645,440.64/x
  3. Step 3: Cross multiply
    2,141,456.64x = 3,212,660.16 × 645,440.64
  4. Step 4: Simplify right side
    2,141,456.64x = 2,073,581,429,772.90
  5. Step 5: Solve for x
    x = 2,073,581,429,772.90/2,141,456.64
  6. Step 6: Final answer
    x = 968,304.19

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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.