Home / 857,168.40-1,288,717.20-801,667.20

Finding the Fourth Proportional to 857,168.40, 1,288,717.20 and 801,667.20

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Solution

The fourth proportional to 857,168.40, 1,288,717.20 and 801,667.20 is: 1,205,273.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,168.40 : 1,288,717.20 = 801,667.20 : x
  2. Step 2: Convert to fraction form
    857,168.40/1,288,717.20 = 801,667.20/x
  3. Step 3: Cross multiply
    857,168.40x = 1,288,717.20 × 801,667.20
  4. Step 4: Simplify right side
    857,168.40x = 1,033,122,309,315.84
  5. Step 5: Solve for x
    x = 1,033,122,309,315.84/857,168.40
  6. Step 6: Final answer
    x = 1,205,273.44

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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.