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Finding the Third Proportional to 518,343.75 and 773,518.50

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Solution

The third proportional to 518,343.75 and 773,518.50 is: 1,154,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,343.75 : 773,518.50 = 773,518.50 : x
  2. Step 2: Convert to fraction form
    518,343.75/773,518.50 = 773,518.50/x
  3. Step 3: Cross multiply
    518,343.75x = 773,518.50 × 773,518.50
  4. Step 4: Simplify right side
    518,343.75x = 598,330,869,842.25
  5. Step 5: Solve for x
    x = 598,330,869,842.25/518,343.75
  6. Step 6: Final answer
    x = 1,154,312.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.