Home / 764,758.32-1,055,367.08-420,599.68

Finding the Fourth Proportional to 764,758.32, 1,055,367.08 and 420,599.68

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Solution

The fourth proportional to 764,758.32, 1,055,367.08 and 420,599.68 is: 580,427.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,758.32 : 1,055,367.08 = 420,599.68 : x
  2. Step 2: Convert to fraction form
    764,758.32/1,055,367.08 = 420,599.68/x
  3. Step 3: Cross multiply
    764,758.32x = 1,055,367.08 × 420,599.68
  4. Step 4: Simplify right side
    764,758.32x = 443,887,056,130.53
  5. Step 5: Solve for x
    x = 443,887,056,130.53/764,758.32
  6. Step 6: Final answer
    x = 580,427.89

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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.