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Finding the Third Proportional to 515,316 and 757,563

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Solution

The third proportional to 515,316 and 757,563 is: 1,113,688.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,316 : 757,563 = 757,563 : x
  2. Step 2: Convert to fraction form
    515,316/757,563 = 757,563/x
  3. Step 3: Cross multiply
    515,316x = 757,563 × 757,563
  4. Step 4: Simplify right side
    515,316x = 573,901,698,969
  5. Step 5: Solve for x
    x = 573,901,698,969/515,316
  6. Step 6: Final answer
    x = 1,113,688.88

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.