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Finding the Fourth Proportional to 528,677.67, 729,954.14 and 325,001.55

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Solution

The fourth proportional to 528,677.67, 729,954.14 and 325,001.55 is: 448,735.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,677.67 : 729,954.14 = 325,001.55 : x
  2. Step 2: Convert to fraction form
    528,677.67/729,954.14 = 325,001.55/x
  3. Step 3: Cross multiply
    528,677.67x = 729,954.14 × 325,001.55
  4. Step 4: Simplify right side
    528,677.67x = 237,236,226,928.92
  5. Step 5: Solve for x
    x = 237,236,226,928.92/528,677.67
  6. Step 6: Final answer
    x = 448,735.10

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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.