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Finding the Fourth Proportional to 802,619.44, 1,107,233.22 and 480,264.64

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Solution

The fourth proportional to 802,619.44, 1,107,233.22 and 480,264.64 is: 662,536.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,619.44 : 1,107,233.22 = 480,264.64 : x
  2. Step 2: Convert to fraction form
    802,619.44/1,107,233.22 = 480,264.64/x
  3. Step 3: Cross multiply
    802,619.44x = 1,107,233.22 × 480,264.64
  4. Step 4: Simplify right side
    802,619.44x = 531,764,963,799.34
  5. Step 5: Solve for x
    x = 531,764,963,799.34/802,619.44
  6. Step 6: Final answer
    x = 662,536.86

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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.