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Finding the Fourth Proportional to 528,644.72, 729,540.60 and 299,202

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Solution

The fourth proportional to 528,644.72, 729,540.60 and 299,202 is: 412,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,644.72 : 729,540.60 = 299,202 : x
  2. Step 2: Convert to fraction form
    528,644.72/729,540.60 = 299,202/x
  3. Step 3: Cross multiply
    528,644.72x = 729,540.60 × 299,202
  4. Step 4: Simplify right side
    528,644.72x = 218,280,006,601.20
  5. Step 5: Solve for x
    x = 218,280,006,601.20/528,644.72
  6. Step 6: Final answer
    x = 412,904.92

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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.