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Finding the Third Proportional to 490,854 and 720,114

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Solution

The third proportional to 490,854 and 720,114 is: 1,056,452.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,854 : 720,114 = 720,114 : x
  2. Step 2: Convert to fraction form
    490,854/720,114 = 720,114/x
  3. Step 3: Cross multiply
    490,854x = 720,114 × 720,114
  4. Step 4: Simplify right side
    490,854x = 518,564,172,996
  5. Step 5: Solve for x
    x = 518,564,172,996/490,854
  6. Step 6: Final answer
    x = 1,056,452.98

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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.