Home / 808,761.64-1,213,297.96-310,086.76

Finding the Fourth Proportional to 808,761.64, 1,213,297.96 and 310,086.76

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Solution

The fourth proportional to 808,761.64, 1,213,297.96 and 310,086.76 is: 465,189.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,761.64 : 1,213,297.96 = 310,086.76 : x
  2. Step 2: Convert to fraction form
    808,761.64/1,213,297.96 = 310,086.76/x
  3. Step 3: Cross multiply
    808,761.64x = 1,213,297.96 × 310,086.76
  4. Step 4: Simplify right side
    808,761.64x = 376,227,633,331.01
  5. Step 5: Solve for x
    x = 376,227,633,331.01/808,761.64
  6. Step 6: Final answer
    x = 465,189.76

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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.