Home / 815,526.46-1,223,440.27-268,449.79

Finding the Fourth Proportional to 815,526.46, 1,223,440.27 and 268,449.79

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Solution

The fourth proportional to 815,526.46, 1,223,440.27 and 268,449.79 is: 402,724.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,526.46 : 1,223,440.27 = 268,449.79 : x
  2. Step 2: Convert to fraction form
    815,526.46/1,223,440.27 = 268,449.79/x
  3. Step 3: Cross multiply
    815,526.46x = 1,223,440.27 × 268,449.79
  4. Step 4: Simplify right side
    815,526.46x = 328,432,277,441.84
  5. Step 5: Solve for x
    x = 328,432,277,441.84/815,526.46
  6. Step 6: Final answer
    x = 402,724.24

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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.