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Finding the Third Proportional to 369,781.50 and 528,427.50

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Solution

The third proportional to 369,781.50 and 528,427.50 is: 755,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,781.50 : 528,427.50 = 528,427.50 : x
  2. Step 2: Convert to fraction form
    369,781.50/528,427.50 = 528,427.50/x
  3. Step 3: Cross multiply
    369,781.50x = 528,427.50 × 528,427.50
  4. Step 4: Simplify right side
    369,781.50x = 279,235,622,756.25
  5. Step 5: Solve for x
    x = 279,235,622,756.25/369,781.50
  6. Step 6: Final answer
    x = 755,136.81

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.