Home / 764,427.70-1,145,329.35-498,051.10

Finding the Fourth Proportional to 764,427.70, 1,145,329.35 and 498,051.10

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Solution

The fourth proportional to 764,427.70, 1,145,329.35 and 498,051.10 is: 746,221.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,427.70 : 1,145,329.35 = 498,051.10 : x
  2. Step 2: Convert to fraction form
    764,427.70/1,145,329.35 = 498,051.10/x
  3. Step 3: Cross multiply
    764,427.70x = 1,145,329.35 × 498,051.10
  4. Step 4: Simplify right side
    764,427.70x = 570,432,542,629.79
  5. Step 5: Solve for x
    x = 570,432,542,629.79/764,427.70
  6. Step 6: Final answer
    x = 746,221.71

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.