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Finding the Fourth Proportional to 626,773.68, 864,947.65 and 340,293.80

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Solution

The fourth proportional to 626,773.68, 864,947.65 and 340,293.80 is: 469,605.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,773.68 : 864,947.65 = 340,293.80 : x
  2. Step 2: Convert to fraction form
    626,773.68/864,947.65 = 340,293.80/x
  3. Step 3: Cross multiply
    626,773.68x = 864,947.65 × 340,293.80
  4. Step 4: Simplify right side
    626,773.68x = 294,336,322,619.57
  5. Step 5: Solve for x
    x = 294,336,322,619.57/626,773.68
  6. Step 6: Final answer
    x = 469,605.43

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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.