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Finding the Third Proportional to 478,561.50 and 717,842.25

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Solution

The third proportional to 478,561.50 and 717,842.25 is: 1,076,763.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,561.50 : 717,842.25 = 717,842.25 : x
  2. Step 2: Convert to fraction form
    478,561.50/717,842.25 = 717,842.25/x
  3. Step 3: Cross multiply
    478,561.50x = 717,842.25 × 717,842.25
  4. Step 4: Simplify right side
    478,561.50x = 515,297,495,885.06
  5. Step 5: Solve for x
    x = 515,297,495,885.06/478,561.50
  6. Step 6: Final answer
    x = 1,076,763.38

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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.