Home / 815,916.98-1,223,114.54-275,797.45

Finding the Fourth Proportional to 815,916.98, 1,223,114.54 and 275,797.45

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Solution

The fourth proportional to 815,916.98, 1,223,114.54 and 275,797.45 is: 413,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,916.98 : 1,223,114.54 = 275,797.45 : x
  2. Step 2: Convert to fraction form
    815,916.98/1,223,114.54 = 275,797.45/x
  3. Step 3: Cross multiply
    815,916.98x = 1,223,114.54 × 275,797.45
  4. Step 4: Simplify right side
    815,916.98x = 337,331,872,891.19
  5. Step 5: Solve for x
    x = 337,331,872,891.19/815,916.98
  6. Step 6: Final answer
    x = 413,438.97

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Double scale
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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.