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Finding the Third Proportional to 542,813 and 798,430

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Solution

The third proportional to 542,813 and 798,430 is: 1,174,420.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,813 : 798,430 = 798,430 : x
  2. Step 2: Convert to fraction form
    542,813/798,430 = 798,430/x
  3. Step 3: Cross multiply
    542,813x = 798,430 × 798,430
  4. Step 4: Simplify right side
    542,813x = 637,490,464,900
  5. Step 5: Solve for x
    x = 637,490,464,900/542,813
  6. Step 6: Final answer
    x = 1,174,420.04

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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.