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Finding the Fourth Proportional to 626,540.44, 864,602.68 and 340,054.38

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Solution

The fourth proportional to 626,540.44, 864,602.68 and 340,054.38 is: 469,262.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,540.44 : 864,602.68 = 340,054.38 : x
  2. Step 2: Convert to fraction form
    626,540.44/864,602.68 = 340,054.38/x
  3. Step 3: Cross multiply
    626,540.44x = 864,602.68 × 340,054.38
  4. Step 4: Simplify right side
    626,540.44x = 294,011,928,293.74
  5. Step 5: Solve for x
    x = 294,011,928,293.74/626,540.44
  6. Step 6: Final answer
    x = 469,262.49

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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.