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Finding the Fourth Proportional to 555,080.82, 766,030.08 and 340,179.36

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Solution

The fourth proportional to 555,080.82, 766,030.08 and 340,179.36 is: 469,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,080.82 : 766,030.08 = 340,179.36 : x
  2. Step 2: Convert to fraction form
    555,080.82/766,030.08 = 340,179.36/x
  3. Step 3: Cross multiply
    555,080.82x = 766,030.08 × 340,179.36
  4. Step 4: Simplify right side
    555,080.82x = 260,587,622,355.15
  5. Step 5: Solve for x
    x = 260,587,622,355.15/555,080.82
  6. Step 6: Final answer
    x = 469,458.88

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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.