Home / 993,918.40-1,489,120.80-961,028.80

Finding the Fourth Proportional to 993,918.40, 1,489,120.80 and 961,028.80

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Solution

The fourth proportional to 993,918.40, 1,489,120.80 and 961,028.80 is: 1,439,844.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,918.40 : 1,489,120.80 = 961,028.80 : x
  2. Step 2: Convert to fraction form
    993,918.40/1,489,120.80 = 961,028.80/x
  3. Step 3: Cross multiply
    993,918.40x = 1,489,120.80 × 961,028.80
  4. Step 4: Simplify right side
    993,918.40x = 1,431,087,975,479.04
  5. Step 5: Solve for x
    x = 1,431,087,975,479.04/993,918.40
  6. Step 6: Final answer
    x = 1,439,844.53

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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.