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Finding the Third Proportional to 878,985 and 1,318,234.50

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Solution

The third proportional to 878,985 and 1,318,234.50 is: 1,976,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,985 : 1,318,234.50 = 1,318,234.50 : x
  2. Step 2: Convert to fraction form
    878,985/1,318,234.50 = 1,318,234.50/x
  3. Step 3: Cross multiply
    878,985x = 1,318,234.50 × 1,318,234.50
  4. Step 4: Simplify right side
    878,985x = 1,737,742,196,990.25
  5. Step 5: Solve for x
    x = 1,737,742,196,990.25/878,985
  6. Step 6: Final answer
    x = 1,976,987.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.