Home / 814,391.20-1,221,426.51-274,594.96

Finding the Fourth Proportional to 814,391.20, 1,221,426.51 and 274,594.96

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Solution

The fourth proportional to 814,391.20, 1,221,426.51 and 274,594.96 is: 411,838.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,391.20 : 1,221,426.51 = 274,594.96 : x
  2. Step 2: Convert to fraction form
    814,391.20/1,221,426.51 = 274,594.96/x
  3. Step 3: Cross multiply
    814,391.20x = 1,221,426.51 × 274,594.96
  4. Step 4: Simplify right side
    814,391.20x = 335,397,563,656.39
  5. Step 5: Solve for x
    x = 335,397,563,656.39/814,391.20
  6. Step 6: Final answer
    x = 411,838.39

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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.