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Finding the Third Proportional to 870,874 and 1,319,436

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Solution

The third proportional to 870,874 and 1,319,436 is: 1,999,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,874 : 1,319,436 = 1,319,436 : x
  2. Step 2: Convert to fraction form
    870,874/1,319,436 = 1,319,436/x
  3. Step 3: Cross multiply
    870,874x = 1,319,436 × 1,319,436
  4. Step 4: Simplify right side
    870,874x = 1,740,911,358,096
  5. Step 5: Solve for x
    x = 1,740,911,358,096/870,874
  6. Step 6: Final answer
    x = 1,999,039.31

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.