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Finding the Third Proportional to 378,246 and 585,688.50

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Solution

The third proportional to 378,246 and 585,688.50 is: 906,899.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,246 : 585,688.50 = 585,688.50 : x
  2. Step 2: Convert to fraction form
    378,246/585,688.50 = 585,688.50/x
  3. Step 3: Cross multiply
    378,246x = 585,688.50 × 585,688.50
  4. Step 4: Simplify right side
    378,246x = 343,031,019,032.25
  5. Step 5: Solve for x
    x = 343,031,019,032.25/378,246
  6. Step 6: Final answer
    x = 906,899.26

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.