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Finding the Third Proportional to 513,708.75 and 805,828.50

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Solution

The third proportional to 513,708.75 and 805,828.50 is: 1,264,061.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,708.75 : 805,828.50 = 805,828.50 : x
  2. Step 2: Convert to fraction form
    513,708.75/805,828.50 = 805,828.50/x
  3. Step 3: Cross multiply
    513,708.75x = 805,828.50 × 805,828.50
  4. Step 4: Simplify right side
    513,708.75x = 649,359,571,412.25
  5. Step 5: Solve for x
    x = 649,359,571,412.25/513,708.75
  6. Step 6: Final answer
    x = 1,264,061.73

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.