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Finding the Fourth Proportional to 528,067.23, 729,132.08 and 324,397.40

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Solution

The fourth proportional to 528,067.23, 729,132.08 and 324,397.40 is: 447,913.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,067.23 : 729,132.08 = 324,397.40 : x
  2. Step 2: Convert to fraction form
    528,067.23/729,132.08 = 324,397.40/x
  3. Step 3: Cross multiply
    528,067.23x = 729,132.08 × 324,397.40
  4. Step 4: Simplify right side
    528,067.23x = 236,528,545,740.95
  5. Step 5: Solve for x
    x = 236,528,545,740.95/528,067.23
  6. Step 6: Final answer
    x = 447,913.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.