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Finding the Fourth Proportional to 587,261.96, 810,488.72 and 329,208.60

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Solution

The fourth proportional to 587,261.96, 810,488.72 and 329,208.60 is: 454,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,261.96 : 810,488.72 = 329,208.60 : x
  2. Step 2: Convert to fraction form
    587,261.96/810,488.72 = 329,208.60/x
  3. Step 3: Cross multiply
    587,261.96x = 810,488.72 × 329,208.60
  4. Step 4: Simplify right side
    587,261.96x = 266,819,856,826.99
  5. Step 5: Solve for x
    x = 266,819,856,826.99/587,261.96
  6. Step 6: Final answer
    x = 454,345.55

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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.