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Finding the Third Proportional to 421,332 and 910,000.50

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Solution

The third proportional to 421,332 and 910,000.50 is: 1,965,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,332 : 910,000.50 = 910,000.50 : x
  2. Step 2: Convert to fraction form
    421,332/910,000.50 = 910,000.50/x
  3. Step 3: Cross multiply
    421,332x = 910,000.50 × 910,000.50
  4. Step 4: Simplify right side
    421,332x = 828,100,910,000.25
  5. Step 5: Solve for x
    x = 828,100,910,000.25/421,332
  6. Step 6: Final answer
    x = 1,965,435.59

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.