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Finding the Third Proportional to 556,230 and 861,673

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Solution

The third proportional to 556,230 and 861,673 is: 1,334,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,230 : 861,673 = 861,673 : x
  2. Step 2: Convert to fraction form
    556,230/861,673 = 861,673/x
  3. Step 3: Cross multiply
    556,230x = 861,673 × 861,673
  4. Step 4: Simplify right side
    556,230x = 742,480,358,929
  5. Step 5: Solve for x
    x = 742,480,358,929/556,230
  6. Step 6: Final answer
    x = 1,334,844.15

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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.