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Finding the Fourth Proportional to 471,105.08, 650,066.08 and 318,475.28

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Solution

The fourth proportional to 471,105.08, 650,066.08 and 318,475.28 is: 439,456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,105.08 : 650,066.08 = 318,475.28 : x
  2. Step 2: Convert to fraction form
    471,105.08/650,066.08 = 318,475.28/x
  3. Step 3: Cross multiply
    471,105.08x = 650,066.08 × 318,475.28
  4. Step 4: Simplify right side
    471,105.08x = 207,029,976,846.50
  5. Step 5: Solve for x
    x = 207,029,976,846.50/471,105.08
  6. Step 6: Final answer
    x = 439,456.05

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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.