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Finding the Fourth Proportional to 626,157.52, 864,099.56 and 339,679.64

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Solution

The fourth proportional to 626,157.52, 864,099.56 and 339,679.64 is: 468,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,157.52 : 864,099.56 = 339,679.64 : x
  2. Step 2: Convert to fraction form
    626,157.52/864,099.56 = 339,679.64/x
  3. Step 3: Cross multiply
    626,157.52x = 864,099.56 × 339,679.64
  4. Step 4: Simplify right side
    626,157.52x = 293,517,030,474.41
  5. Step 5: Solve for x
    x = 293,517,030,474.41/626,157.52
  6. Step 6: Final answer
    x = 468,759.09

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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.