Home / 764,697.19-1,055,227.34-420,557.35

Finding the Fourth Proportional to 764,697.19, 1,055,227.34 and 420,557.35

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Solution

The fourth proportional to 764,697.19, 1,055,227.34 and 420,557.35 is: 580,339.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,697.19 : 1,055,227.34 = 420,557.35 : x
  2. Step 2: Convert to fraction form
    764,697.19/1,055,227.34 = 420,557.35/x
  3. Step 3: Cross multiply
    764,697.19x = 1,055,227.34 × 420,557.35
  4. Step 4: Simplify right side
    764,697.19x = 443,783,613,757.95
  5. Step 5: Solve for x
    x = 443,783,613,757.95/764,697.19
  6. Step 6: Final answer
    x = 580,339.01

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Double scale
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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.