Home / 918,999.68-1,378,544.64-245,087.12

Finding the Fourth Proportional to 918,999.68, 1,378,544.64 and 245,087.12

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Solution

The fourth proportional to 918,999.68, 1,378,544.64 and 245,087.12 is: 367,642.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,999.68 : 1,378,544.64 = 245,087.12 : x
  2. Step 2: Convert to fraction form
    918,999.68/1,378,544.64 = 245,087.12/x
  3. Step 3: Cross multiply
    918,999.68x = 1,378,544.64 × 245,087.12
  4. Step 4: Simplify right side
    918,999.68x = 337,863,535,609.04
  5. Step 5: Solve for x
    x = 337,863,535,609.04/918,999.68
  6. Step 6: Final answer
    x = 367,642.71

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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.