Home / 1,221,723.28-1,832,145.84-422,787.92

Finding the Fourth Proportional to 1,221,723.28, 1,832,145.84 and 422,787.92

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Solution

The fourth proportional to 1,221,723.28, 1,832,145.84 and 422,787.92 is: 634,029.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,723.28 : 1,832,145.84 = 422,787.92 : x
  2. Step 2: Convert to fraction form
    1,221,723.28/1,832,145.84 = 422,787.92/x
  3. Step 3: Cross multiply
    1,221,723.28x = 1,832,145.84 × 422,787.92
  4. Step 4: Simplify right side
    1,221,723.28x = 774,609,128,830.25
  5. Step 5: Solve for x
    x = 774,609,128,830.25/1,221,723.28
  6. Step 6: Final answer
    x = 634,029.93

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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.