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Finding the Third Proportional to 453,440 and 677,791

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Solution

The third proportional to 453,440 and 677,791 is: 1,013,145.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,440 : 677,791 = 677,791 : x
  2. Step 2: Convert to fraction form
    453,440/677,791 = 677,791/x
  3. Step 3: Cross multiply
    453,440x = 677,791 × 677,791
  4. Step 4: Simplify right side
    453,440x = 459,400,639,681
  5. Step 5: Solve for x
    x = 459,400,639,681/453,440
  6. Step 6: Final answer
    x = 1,013,145.38

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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.