Home / 764,081.80-1,054,371.14-441,812.78

Finding the Fourth Proportional to 764,081.80, 1,054,371.14 and 441,812.78

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Solution

The fourth proportional to 764,081.80, 1,054,371.14 and 441,812.78 is: 609,665.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,081.80 : 1,054,371.14 = 441,812.78 : x
  2. Step 2: Convert to fraction form
    764,081.80/1,054,371.14 = 441,812.78/x
  3. Step 3: Cross multiply
    764,081.80x = 1,054,371.14 × 441,812.78
  4. Step 4: Simplify right side
    764,081.80x = 465,834,644,515.17
  5. Step 5: Solve for x
    x = 465,834,644,515.17/764,081.80
  6. Step 6: Final answer
    x = 609,665.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.