Home / 764,819.54-1,055,451.84-425,280.50

Finding the Fourth Proportional to 764,819.54, 1,055,451.84 and 425,280.50

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Solution

The fourth proportional to 764,819.54, 1,055,451.84 and 425,280.50 is: 586,887.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,819.54 : 1,055,451.84 = 425,280.50 : x
  2. Step 2: Convert to fraction form
    764,819.54/1,055,451.84 = 425,280.50/x
  3. Step 3: Cross multiply
    764,819.54x = 1,055,451.84 × 425,280.50
  4. Step 4: Simplify right side
    764,819.54x = 448,863,086,241.12
  5. Step 5: Solve for x
    x = 448,863,086,241.12/764,819.54
  6. Step 6: Final answer
    x = 586,887.58

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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.