Home / 1,270,691.56-1,903,110.54-764,141.32

Finding the Fourth Proportional to 1,270,691.56, 1,903,110.54 and 764,141.32

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Solution

The fourth proportional to 1,270,691.56, 1,903,110.54 and 764,141.32 is: 1,144,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,691.56 : 1,903,110.54 = 764,141.32 : x
  2. Step 2: Convert to fraction form
    1,270,691.56/1,903,110.54 = 764,141.32/x
  3. Step 3: Cross multiply
    1,270,691.56x = 1,903,110.54 × 764,141.32
  4. Step 4: Simplify right side
    1,270,691.56x = 1,454,245,400,141.51
  5. Step 5: Solve for x
    x = 1,454,245,400,141.51/1,270,691.56
  6. Step 6: Final answer
    x = 1,144,451.92

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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.