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Finding the Fourth Proportional to 523,685.67, 722,768.31 and 308,849.37

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Solution

The fourth proportional to 523,685.67, 722,768.31 and 308,849.37 is: 426,260.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,685.67 : 722,768.31 = 308,849.37 : x
  2. Step 2: Convert to fraction form
    523,685.67/722,768.31 = 308,849.37/x
  3. Step 3: Cross multiply
    523,685.67x = 722,768.31 × 308,849.37
  4. Step 4: Simplify right side
    523,685.67x = 223,226,537,199.47
  5. Step 5: Solve for x
    x = 223,226,537,199.47/523,685.67
  6. Step 6: Final answer
    x = 426,260.54

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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.