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Finding the Third Proportional to 790,080 and 1,129,020

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Solution

The third proportional to 790,080 and 1,129,020 is: 1,613,363.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,080 : 1,129,020 = 1,129,020 : x
  2. Step 2: Convert to fraction form
    790,080/1,129,020 = 1,129,020/x
  3. Step 3: Cross multiply
    790,080x = 1,129,020 × 1,129,020
  4. Step 4: Simplify right side
    790,080x = 1,274,686,160,400
  5. Step 5: Solve for x
    x = 1,274,686,160,400/790,080
  6. Step 6: Final answer
    x = 1,613,363.41

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.