Home / 988,187.80-1,482,369.22-278,221.98

Finding the Fourth Proportional to 988,187.80, 1,482,369.22 and 278,221.98

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Solution

The fourth proportional to 988,187.80, 1,482,369.22 and 278,221.98 is: 417,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,187.80 : 1,482,369.22 = 278,221.98 : x
  2. Step 2: Convert to fraction form
    988,187.80/1,482,369.22 = 278,221.98/x
  3. Step 3: Cross multiply
    988,187.80x = 1,482,369.22 × 278,221.98
  4. Step 4: Simplify right side
    988,187.80x = 412,427,699,479.46
  5. Step 5: Solve for x
    x = 412,427,699,479.46/988,187.80
  6. Step 6: Final answer
    x = 417,357.61

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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.