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Finding the Third Proportional to 918,139.50 and 2,159,604

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Solution

The third proportional to 918,139.50 and 2,159,604 is: 5,079,717.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,139.50 : 2,159,604 = 2,159,604 : x
  2. Step 2: Convert to fraction form
    918,139.50/2,159,604 = 2,159,604/x
  3. Step 3: Cross multiply
    918,139.50x = 2,159,604 × 2,159,604
  4. Step 4: Simplify right side
    918,139.50x = 4,663,889,436,816
  5. Step 5: Solve for x
    x = 4,663,889,436,816/918,139.50
  6. Step 6: Final answer
    x = 5,079,717.66

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.