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Finding the Fourth Proportional to 326,940, 487,548.96 and 323,950.50

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Solution

The fourth proportional to 326,940, 487,548.96 and 323,950.50 is: 483,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,940 : 487,548.96 = 323,950.50 : x
  2. Step 2: Convert to fraction form
    326,940/487,548.96 = 323,950.50/x
  3. Step 3: Cross multiply
    326,940x = 487,548.96 × 323,950.50
  4. Step 4: Simplify right side
    326,940x = 157,941,729,366.48
  5. Step 5: Solve for x
    x = 157,941,729,366.48/326,940
  6. Step 6: Final answer
    x = 483,090.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.