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Finding the Third Proportional to 576,478 and 916,040

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Solution

The third proportional to 576,478 and 916,040 is: 1,455,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,478 : 916,040 = 916,040 : x
  2. Step 2: Convert to fraction form
    576,478/916,040 = 916,040/x
  3. Step 3: Cross multiply
    576,478x = 916,040 × 916,040
  4. Step 4: Simplify right side
    576,478x = 839,129,281,600
  5. Step 5: Solve for x
    x = 839,129,281,600/576,478
  6. Step 6: Final answer
    x = 1,455,613.71

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.