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Finding the Third Proportional to 240,372 and 556,440

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Solution

The third proportional to 240,372 and 556,440 is: 1,288,109.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,372 : 556,440 = 556,440 : x
  2. Step 2: Convert to fraction form
    240,372/556,440 = 556,440/x
  3. Step 3: Cross multiply
    240,372x = 556,440 × 556,440
  4. Step 4: Simplify right side
    240,372x = 309,625,473,600
  5. Step 5: Solve for x
    x = 309,625,473,600/240,372
  6. Step 6: Final answer
    x = 1,288,109.57

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.