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Finding the Third Proportional to 515,389.50 and 770,703.75

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Solution

The third proportional to 515,389.50 and 770,703.75 is: 1,152,495.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,389.50 : 770,703.75 = 770,703.75 : x
  2. Step 2: Convert to fraction form
    515,389.50/770,703.75 = 770,703.75/x
  3. Step 3: Cross multiply
    515,389.50x = 770,703.75 × 770,703.75
  4. Step 4: Simplify right side
    515,389.50x = 593,984,270,264.06
  5. Step 5: Solve for x
    x = 593,984,270,264.06/515,389.50
  6. Step 6: Final answer
    x = 1,152,495.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.