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Finding the Third Proportional to 548,278 and 860,280

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Solution

The third proportional to 548,278 and 860,280 is: 1,349,829.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,278 : 860,280 = 860,280 : x
  2. Step 2: Convert to fraction form
    548,278/860,280 = 860,280/x
  3. Step 3: Cross multiply
    548,278x = 860,280 × 860,280
  4. Step 4: Simplify right side
    548,278x = 740,081,678,400
  5. Step 5: Solve for x
    x = 740,081,678,400/548,278
  6. Step 6: Final answer
    x = 1,349,829.24

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.