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Finding the Fourth Proportional to 528,062.92, 728,765.38 and 301,703.56

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Solution

The fourth proportional to 528,062.92, 728,765.38 and 301,703.56 is: 416,372.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,062.92 : 728,765.38 = 301,703.56 : x
  2. Step 2: Convert to fraction form
    528,062.92/728,765.38 = 301,703.56/x
  3. Step 3: Cross multiply
    528,062.92x = 728,765.38 × 301,703.56
  4. Step 4: Simplify right side
    528,062.92x = 219,871,109,550.75
  5. Step 5: Solve for x
    x = 219,871,109,550.75/528,062.92
  6. Step 6: Final answer
    x = 416,372.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.