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Finding the Third Proportional to 561,318.75 and 879,530.06

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Solution

The third proportional to 561,318.75 and 879,530.06 is: 1,378,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,318.75 : 879,530.06 = 879,530.06 : x
  2. Step 2: Convert to fraction form
    561,318.75/879,530.06 = 879,530.06/x
  3. Step 3: Cross multiply
    561,318.75x = 879,530.06 × 879,530.06
  4. Step 4: Simplify right side
    561,318.75x = 773,573,130,841.25
  5. Step 5: Solve for x
    x = 773,573,130,841.25/561,318.75
  6. Step 6: Final answer
    x = 1,378,135.21

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.