Home / 816,282.27-1,224,419.40-209,069.42

Finding the Fourth Proportional to 816,282.27, 1,224,419.40 and 209,069.42

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Solution

The fourth proportional to 816,282.27, 1,224,419.40 and 209,069.42 is: 313,603.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,282.27 : 1,224,419.40 = 209,069.42 : x
  2. Step 2: Convert to fraction form
    816,282.27/1,224,419.40 = 209,069.42/x
  3. Step 3: Cross multiply
    816,282.27x = 1,224,419.40 × 209,069.42
  4. Step 4: Simplify right side
    816,282.27x = 255,988,647,672.65
  5. Step 5: Solve for x
    x = 255,988,647,672.65/816,282.27
  6. Step 6: Final answer
    x = 313,603.10

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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.