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Finding the Third Proportional to 554,688 and 856,980

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Solution

The third proportional to 554,688 and 856,980 is: 1,324,014.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,688 : 856,980 = 856,980 : x
  2. Step 2: Convert to fraction form
    554,688/856,980 = 856,980/x
  3. Step 3: Cross multiply
    554,688x = 856,980 × 856,980
  4. Step 4: Simplify right side
    554,688x = 734,414,720,400
  5. Step 5: Solve for x
    x = 734,414,720,400/554,688
  6. Step 6: Final answer
    x = 1,324,014.08

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.