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Finding the Third Proportional to 448,631.16 and 689,577.05

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Solution

The third proportional to 448,631.16 and 689,577.05 is: 1,059,927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,631.16 : 689,577.05 = 689,577.05 : x
  2. Step 2: Convert to fraction form
    448,631.16/689,577.05 = 689,577.05/x
  3. Step 3: Cross multiply
    448,631.16x = 689,577.05 × 689,577.05
  4. Step 4: Simplify right side
    448,631.16x = 475,516,503,576.85
  5. Step 5: Solve for x
    x = 475,516,503,576.85/448,631.16
  6. Step 6: Final answer
    x = 1,059,927.51

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.