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Finding the Fourth Proportional to 626,847.14, 865,052.31 and 340,367.15

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Solution

The fourth proportional to 626,847.14, 865,052.31 and 340,367.15 is: 469,708.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,847.14 : 865,052.31 = 340,367.15 : x
  2. Step 2: Convert to fraction form
    626,847.14/865,052.31 = 340,367.15/x
  3. Step 3: Cross multiply
    626,847.14x = 865,052.31 × 340,367.15
  4. Step 4: Simplify right side
    626,847.14x = 294,435,385,030.36
  5. Step 5: Solve for x
    x = 294,435,385,030.36/626,847.14
  6. Step 6: Final answer
    x = 469,708.43

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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.