Home / 815,305.87-1,223,109.15-268,229.07

Finding the Fourth Proportional to 815,305.87, 1,223,109.15 and 268,229.07

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Solution

The fourth proportional to 815,305.87, 1,223,109.15 and 268,229.07 is: 402,393.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,305.87 : 1,223,109.15 = 268,229.07 : x
  2. Step 2: Convert to fraction form
    815,305.87/1,223,109.15 = 268,229.07/x
  3. Step 3: Cross multiply
    815,305.87x = 1,223,109.15 × 268,229.07
  4. Step 4: Simplify right side
    815,305.87x = 328,073,426,084.65
  5. Step 5: Solve for x
    x = 328,073,426,084.65/815,305.87
  6. Step 6: Final answer
    x = 402,393.06

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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.