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Finding the Fourth Proportional to 528,171.15, 728,027.31 and 413,251.59

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Solution

The fourth proportional to 528,171.15, 728,027.31 and 413,251.59 is: 569,623.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,171.15 : 728,027.31 = 413,251.59 : x
  2. Step 2: Convert to fraction form
    528,171.15/728,027.31 = 413,251.59/x
  3. Step 3: Cross multiply
    528,171.15x = 728,027.31 × 413,251.59
  4. Step 4: Simplify right side
    528,171.15x = 300,858,443,420.92
  5. Step 5: Solve for x
    x = 300,858,443,420.92/528,171.15
  6. Step 6: Final answer
    x = 569,623.02

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1.5x scale

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.