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Finding the Fourth Proportional to 576,057.30, 794,903.67 and 321,344.70

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Solution

The fourth proportional to 576,057.30, 794,903.67 and 321,344.70 is: 443,424.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,057.30 : 794,903.67 = 321,344.70 : x
  2. Step 2: Convert to fraction form
    576,057.30/794,903.67 = 321,344.70/x
  3. Step 3: Cross multiply
    576,057.30x = 794,903.67 × 321,344.70
  4. Step 4: Simplify right side
    576,057.30x = 255,438,081,365.05
  5. Step 5: Solve for x
    x = 255,438,081,365.05/576,057.30
  6. Step 6: Final answer
    x = 443,424.78

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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.