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Finding the Third Proportional to 840,707 and 1,179,678.50

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Solution

The third proportional to 840,707 and 1,179,678.50 is: 1,655,322.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,707 : 1,179,678.50 = 1,179,678.50 : x
  2. Step 2: Convert to fraction form
    840,707/1,179,678.50 = 1,179,678.50/x
  3. Step 3: Cross multiply
    840,707x = 1,179,678.50 × 1,179,678.50
  4. Step 4: Simplify right side
    840,707x = 1,391,641,363,362.25
  5. Step 5: Solve for x
    x = 1,391,641,363,362.25/840,707
  6. Step 6: Final answer
    x = 1,655,322.68

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.