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Finding the Third Proportional to 699,042 and 1,528,920

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Solution

The third proportional to 699,042 and 1,528,920 is: 3,343,999.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,042 : 1,528,920 = 1,528,920 : x
  2. Step 2: Convert to fraction form
    699,042/1,528,920 = 1,528,920/x
  3. Step 3: Cross multiply
    699,042x = 1,528,920 × 1,528,920
  4. Step 4: Simplify right side
    699,042x = 2,337,596,366,400
  5. Step 5: Solve for x
    x = 2,337,596,366,400/699,042
  6. Step 6: Final answer
    x = 3,343,999.88

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.