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Finding the Fourth Proportional to 517,493.71, 775,978.02 and 236,770.39

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Solution

The fourth proportional to 517,493.71, 775,978.02 and 236,770.39 is: 355,035.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,493.71 : 775,978.02 = 236,770.39 : x
  2. Step 2: Convert to fraction form
    517,493.71/775,978.02 = 236,770.39/x
  3. Step 3: Cross multiply
    517,493.71x = 775,978.02 × 236,770.39
  4. Step 4: Simplify right side
    517,493.71x = 183,728,618,426.83
  5. Step 5: Solve for x
    x = 183,728,618,426.83/517,493.71
  6. Step 6: Final answer
    x = 355,035.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.