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Finding the Third Proportional to 305,913 and 656,113.50

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Solution

The third proportional to 305,913 and 656,113.50 is: 1,407,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,913 : 656,113.50 = 656,113.50 : x
  2. Step 2: Convert to fraction form
    305,913/656,113.50 = 656,113.50/x
  3. Step 3: Cross multiply
    305,913x = 656,113.50 × 656,113.50
  4. Step 4: Simplify right side
    305,913x = 430,484,924,882.25
  5. Step 5: Solve for x
    x = 430,484,924,882.25/305,913
  6. Step 6: Final answer
    x = 1,407,213.57

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.