Home / 1,200,738.32-1,801,189.56-401,987.60

Finding the Fourth Proportional to 1,200,738.32, 1,801,189.56 and 401,987.60

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Solution

The fourth proportional to 1,200,738.32, 1,801,189.56 and 401,987.60 is: 603,008.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,738.32 : 1,801,189.56 = 401,987.60 : x
  2. Step 2: Convert to fraction form
    1,200,738.32/1,801,189.56 = 401,987.60/x
  3. Step 3: Cross multiply
    1,200,738.32x = 1,801,189.56 × 401,987.60
  4. Step 4: Simplify right side
    1,200,738.32x = 724,055,868,369.46
  5. Step 5: Solve for x
    x = 724,055,868,369.46/1,200,738.32
  6. Step 6: Final answer
    x = 603,008.88

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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.