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Finding the Third Proportional to 334,890 and 790,389

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Solution

The third proportional to 334,890 and 790,389 is: 1,865,432.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,890 : 790,389 = 790,389 : x
  2. Step 2: Convert to fraction form
    334,890/790,389 = 790,389/x
  3. Step 3: Cross multiply
    334,890x = 790,389 × 790,389
  4. Step 4: Simplify right side
    334,890x = 624,714,771,321
  5. Step 5: Solve for x
    x = 624,714,771,321/334,890
  6. Step 6: Final answer
    x = 1,865,432.74

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.