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Finding the Third Proportional to 860,320 and 1,331,486

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Solution

The third proportional to 860,320 and 1,331,486 is: 2,060,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,320 : 1,331,486 = 1,331,486 : x
  2. Step 2: Convert to fraction form
    860,320/1,331,486 = 1,331,486/x
  3. Step 3: Cross multiply
    860,320x = 1,331,486 × 1,331,486
  4. Step 4: Simplify right side
    860,320x = 1,772,854,968,196
  5. Step 5: Solve for x
    x = 1,772,854,968,196/860,320
  6. Step 6: Final answer
    x = 2,060,692.50

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.