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Finding the Third Proportional to 552,582 and 991,440

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Solution

The third proportional to 552,582 and 991,440 is: 1,778,836.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,582 : 991,440 = 991,440 : x
  2. Step 2: Convert to fraction form
    552,582/991,440 = 991,440/x
  3. Step 3: Cross multiply
    552,582x = 991,440 × 991,440
  4. Step 4: Simplify right side
    552,582x = 982,953,273,600
  5. Step 5: Solve for x
    x = 982,953,273,600/552,582
  6. Step 6: Final answer
    x = 1,778,836.94

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.