Home / 727,286.96-1,091,428.44-253,972.40

Finding the Fourth Proportional to 727,286.96, 1,091,428.44 and 253,972.40

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Solution

The fourth proportional to 727,286.96, 1,091,428.44 and 253,972.40 is: 381,132.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,286.96 : 1,091,428.44 = 253,972.40 : x
  2. Step 2: Convert to fraction form
    727,286.96/1,091,428.44 = 253,972.40/x
  3. Step 3: Cross multiply
    727,286.96x = 1,091,428.44 × 253,972.40
  4. Step 4: Simplify right side
    727,286.96x = 277,192,700,335.06
  5. Step 5: Solve for x
    x = 277,192,700,335.06/727,286.96
  6. Step 6: Final answer
    x = 381,132.50

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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.