Home / 787,111.37-1,180,751.38-218,494.87

Finding the Fourth Proportional to 787,111.37, 1,180,751.38 and 218,494.87

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Solution

The fourth proportional to 787,111.37, 1,180,751.38 and 218,494.87 is: 327,765.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,111.37 : 1,180,751.38 = 218,494.87 : x
  2. Step 2: Convert to fraction form
    787,111.37/1,180,751.38 = 218,494.87/x
  3. Step 3: Cross multiply
    787,111.37x = 1,180,751.38 × 218,494.87
  4. Step 4: Simplify right side
    787,111.37x = 257,988,115,777.31
  5. Step 5: Solve for x
    x = 257,988,115,777.31/787,111.37
  6. Step 6: Final answer
    x = 327,765.71

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1.5x scale

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.