Home / 1,489,451.70-2,055,381.94-810,390.90

Finding the Fourth Proportional to 1,489,451.70, 2,055,381.94 and 810,390.90

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Solution

The fourth proportional to 1,489,451.70, 2,055,381.94 and 810,390.90 is: 1,118,306.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,451.70 : 2,055,381.94 = 810,390.90 : x
  2. Step 2: Convert to fraction form
    1,489,451.70/2,055,381.94 = 810,390.90/x
  3. Step 3: Cross multiply
    1,489,451.70x = 2,055,381.94 × 810,390.90
  4. Step 4: Simplify right side
    1,489,451.70x = 1,665,662,820,200.35
  5. Step 5: Solve for x
    x = 1,665,662,820,200.35/1,489,451.70
  6. Step 6: Final answer
    x = 1,118,306.03

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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.