Home / 815,743.20-1,223,136.09-246,953.10

Finding the Fourth Proportional to 815,743.20, 1,223,136.09 and 246,953.10

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Solution

The fourth proportional to 815,743.20, 1,223,136.09 and 246,953.10 is: 370,284.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,743.20 : 1,223,136.09 = 246,953.10 : x
  2. Step 2: Convert to fraction form
    815,743.20/1,223,136.09 = 246,953.10/x
  3. Step 3: Cross multiply
    815,743.20x = 1,223,136.09 × 246,953.10
  4. Step 4: Simplify right side
    815,743.20x = 302,057,249,147.38
  5. Step 5: Solve for x
    x = 302,057,249,147.38/815,743.20
  6. Step 6: Final answer
    x = 370,284.73

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1.5x scale

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.