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Finding the Fourth Proportional to 528,495.72, 729,019.08 and 337,293.60

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Solution

The fourth proportional to 528,495.72, 729,019.08 and 337,293.60 is: 465,270.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,495.72 : 729,019.08 = 337,293.60 : x
  2. Step 2: Convert to fraction form
    528,495.72/729,019.08 = 337,293.60/x
  3. Step 3: Cross multiply
    528,495.72x = 729,019.08 × 337,293.60
  4. Step 4: Simplify right side
    528,495.72x = 245,893,469,961.89
  5. Step 5: Solve for x
    x = 245,893,469,961.89/528,495.72
  6. Step 6: Final answer
    x = 465,270.50

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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.