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Finding the Third Proportional to 387,298.50 and 586,743.75

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Solution

The third proportional to 387,298.50 and 586,743.75 is: 888,896.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,298.50 : 586,743.75 = 586,743.75 : x
  2. Step 2: Convert to fraction form
    387,298.50/586,743.75 = 586,743.75/x
  3. Step 3: Cross multiply
    387,298.50x = 586,743.75 × 586,743.75
  4. Step 4: Simplify right side
    387,298.50x = 344,268,228,164.06
  5. Step 5: Solve for x
    x = 344,268,228,164.06/387,298.50
  6. Step 6: Final answer
    x = 888,896.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.