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Finding the Fourth Proportional to 528,544.72, 729,374.52 and 295,971.85

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Solution

The fourth proportional to 528,544.72, 729,374.52 and 295,971.85 is: 408,431.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,544.72 : 729,374.52 = 295,971.85 : x
  2. Step 2: Convert to fraction form
    528,544.72/729,374.52 = 295,971.85/x
  3. Step 3: Cross multiply
    528,544.72x = 729,374.52 × 295,971.85
  4. Step 4: Simplify right side
    528,544.72x = 215,874,326,027.26
  5. Step 5: Solve for x
    x = 215,874,326,027.26/528,544.72
  6. Step 6: Final answer
    x = 408,431.53

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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.