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Finding the Third Proportional to 720,816 and 1,585,518

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Solution

The third proportional to 720,816 and 1,585,518 is: 3,487,529.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,816 : 1,585,518 = 1,585,518 : x
  2. Step 2: Convert to fraction form
    720,816/1,585,518 = 1,585,518/x
  3. Step 3: Cross multiply
    720,816x = 1,585,518 × 1,585,518
  4. Step 4: Simplify right side
    720,816x = 2,513,867,328,324
  5. Step 5: Solve for x
    x = 2,513,867,328,324/720,816
  6. Step 6: Final answer
    x = 3,487,529.87

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.