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Finding the Fourth Proportional to 576,320.70, 864,481.05 and 310,600.20

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Solution

The fourth proportional to 576,320.70, 864,481.05 and 310,600.20 is: 465,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,320.70 : 864,481.05 = 310,600.20 : x
  2. Step 2: Convert to fraction form
    576,320.70/864,481.05 = 310,600.20/x
  3. Step 3: Cross multiply
    576,320.70x = 864,481.05 × 310,600.20
  4. Step 4: Simplify right side
    576,320.70x = 268,507,987,026.21
  5. Step 5: Solve for x
    x = 268,507,987,026.21/576,320.70
  6. Step 6: Final answer
    x = 465,900.30

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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.