Home / 815,758.92-1,223,669.08-310,225.64

Finding the Fourth Proportional to 815,758.92, 1,223,669.08 and 310,225.64

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Solution

The fourth proportional to 815,758.92, 1,223,669.08 and 310,225.64 is: 465,350.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,758.92 : 1,223,669.08 = 310,225.64 : x
  2. Step 2: Convert to fraction form
    815,758.92/1,223,669.08 = 310,225.64/x
  3. Step 3: Cross multiply
    815,758.92x = 1,223,669.08 × 310,225.64
  4. Step 4: Simplify right side
    815,758.92x = 379,613,523,491.21
  5. Step 5: Solve for x
    x = 379,613,523,491.21/815,758.92
  6. Step 6: Final answer
    x = 465,350.13

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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.