Home / 764,723.20-1,055,314.52-425,171.20

Finding the Fourth Proportional to 764,723.20, 1,055,314.52 and 425,171.20

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Solution

The fourth proportional to 764,723.20, 1,055,314.52 and 425,171.20 is: 586,734.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,723.20 : 1,055,314.52 = 425,171.20 : x
  2. Step 2: Convert to fraction form
    764,723.20/1,055,314.52 = 425,171.20/x
  3. Step 3: Cross multiply
    764,723.20x = 1,055,314.52 × 425,171.20
  4. Step 4: Simplify right side
    764,723.20x = 448,689,340,845.82
  5. Step 5: Solve for x
    x = 448,689,340,845.82/764,723.20
  6. Step 6: Final answer
    x = 586,734.31

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1.5x scale

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.