Home / 691,400.80-1,037,101.23-218,123.08

Finding the Fourth Proportional to 691,400.80, 1,037,101.23 and 218,123.08

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Solution

The fourth proportional to 691,400.80, 1,037,101.23 and 218,123.08 is: 327,184.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,400.80 : 1,037,101.23 = 218,123.08 : x
  2. Step 2: Convert to fraction form
    691,400.80/1,037,101.23 = 218,123.08/x
  3. Step 3: Cross multiply
    691,400.80x = 1,037,101.23 × 218,123.08
  4. Step 4: Simplify right side
    691,400.80x = 226,215,714,559.39
  5. Step 5: Solve for x
    x = 226,215,714,559.39/691,400.80
  6. Step 6: Final answer
    x = 327,184.63

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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.