Home / 764,751.36-1,147,677.12-285,045.12

Finding the Fourth Proportional to 764,751.36, 1,147,677.12 and 285,045.12

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Solution

The fourth proportional to 764,751.36, 1,147,677.12 and 285,045.12 is: 427,772.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,751.36 : 1,147,677.12 = 285,045.12 : x
  2. Step 2: Convert to fraction form
    764,751.36/1,147,677.12 = 285,045.12/x
  3. Step 3: Cross multiply
    764,751.36x = 1,147,677.12 × 285,045.12
  4. Step 4: Simplify right side
    764,751.36x = 327,139,762,391.65
  5. Step 5: Solve for x
    x = 327,139,762,391.65/764,751.36
  6. Step 6: Final answer
    x = 427,772.71

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1.5x scale

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.