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Finding the Fourth Proportional to 576,016.08, 794,904.48 and 321,378

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Solution

The fourth proportional to 576,016.08, 794,904.48 and 321,378 is: 443,502.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,016.08 : 794,904.48 = 321,378 : x
  2. Step 2: Convert to fraction form
    576,016.08/794,904.48 = 321,378/x
  3. Step 3: Cross multiply
    576,016.08x = 794,904.48 × 321,378
  4. Step 4: Simplify right side
    576,016.08x = 255,464,811,973.44
  5. Step 5: Solve for x
    x = 255,464,811,973.44/576,016.08
  6. Step 6: Final answer
    x = 443,502.92

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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.