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Finding the Third Proportional to 289,357.75 and 634,743

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Solution

The third proportional to 289,357.75 and 634,743 is: 1,392,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,357.75 : 634,743 = 634,743 : x
  2. Step 2: Convert to fraction form
    289,357.75/634,743 = 634,743/x
  3. Step 3: Cross multiply
    289,357.75x = 634,743 × 634,743
  4. Step 4: Simplify right side
    289,357.75x = 402,898,676,049
  5. Step 5: Solve for x
    x = 402,898,676,049/289,357.75
  6. Step 6: Final answer
    x = 1,392,389.44

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.