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Finding the Third Proportional to 555,465 and 829,563

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Solution

The third proportional to 555,465 and 829,563 is: 1,238,916.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,465 : 829,563 = 829,563 : x
  2. Step 2: Convert to fraction form
    555,465/829,563 = 829,563/x
  3. Step 3: Cross multiply
    555,465x = 829,563 × 829,563
  4. Step 4: Simplify right side
    555,465x = 688,174,770,969
  5. Step 5: Solve for x
    x = 688,174,770,969/555,465
  6. Step 6: Final answer
    x = 1,238,916.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.