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Finding the Third Proportional to 434,134.69 and 619,278.75

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Solution

The third proportional to 434,134.69 and 619,278.75 is: 883,380.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,134.69 : 619,278.75 = 619,278.75 : x
  2. Step 2: Convert to fraction form
    434,134.69/619,278.75 = 619,278.75/x
  3. Step 3: Cross multiply
    434,134.69x = 619,278.75 × 619,278.75
  4. Step 4: Simplify right side
    434,134.69x = 383,506,170,201.56
  5. Step 5: Solve for x
    x = 383,506,170,201.56/434,134.69
  6. Step 6: Final answer
    x = 883,380.62

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.