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Finding the Fourth Proportional to 576,400.38, 795,431.72 and 321,751.56

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Solution

The fourth proportional to 576,400.38, 795,431.72 and 321,751.56 is: 444,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,400.38 : 795,431.72 = 321,751.56 : x
  2. Step 2: Convert to fraction form
    576,400.38/795,431.72 = 321,751.56/x
  3. Step 3: Cross multiply
    576,400.38x = 795,431.72 × 321,751.56
  4. Step 4: Simplify right side
    576,400.38x = 255,931,396,783.48
  5. Step 5: Solve for x
    x = 255,931,396,783.48/576,400.38
  6. Step 6: Final answer
    x = 444,016.70

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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.