Home / 815,147.70-1,223,158.95-341,880.90

Finding the Fourth Proportional to 815,147.70, 1,223,158.95 and 341,880.90

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Solution

The fourth proportional to 815,147.70, 1,223,158.95 and 341,880.90 is: 513,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,147.70 : 1,223,158.95 = 341,880.90 : x
  2. Step 2: Convert to fraction form
    815,147.70/1,223,158.95 = 341,880.90/x
  3. Step 3: Cross multiply
    815,147.70x = 1,223,158.95 × 341,880.90
  4. Step 4: Simplify right side
    815,147.70x = 418,174,682,669.06
  5. Step 5: Solve for x
    x = 418,174,682,669.06/815,147.70
  6. Step 6: Final answer
    x = 513,004.80

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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.