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Finding the Third Proportional to 415,065.75 and 634,642.50

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Solution

The third proportional to 415,065.75 and 634,642.50 is: 970,379.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,065.75 : 634,642.50 = 634,642.50 : x
  2. Step 2: Convert to fraction form
    415,065.75/634,642.50 = 634,642.50/x
  3. Step 3: Cross multiply
    415,065.75x = 634,642.50 × 634,642.50
  4. Step 4: Simplify right side
    415,065.75x = 402,771,102,806.25
  5. Step 5: Solve for x
    x = 402,771,102,806.25/415,065.75
  6. Step 6: Final answer
    x = 970,379.04

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.