Home / 764,192.26-1,054,587.62-420,063.46

Finding the Fourth Proportional to 764,192.26, 1,054,587.62 and 420,063.46

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Solution

The fourth proportional to 764,192.26, 1,054,587.62 and 420,063.46 is: 579,688.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,192.26 : 1,054,587.62 = 420,063.46 : x
  2. Step 2: Convert to fraction form
    764,192.26/1,054,587.62 = 420,063.46/x
  3. Step 3: Cross multiply
    764,192.26x = 1,054,587.62 × 420,063.46
  4. Step 4: Simplify right side
    764,192.26x = 442,993,719,257.43
  5. Step 5: Solve for x
    x = 442,993,719,257.43/764,192.26
  6. Step 6: Final answer
    x = 579,688.83

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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.