Home / 528,769.89-791,481.60-338,976.63

Finding the Fourth Proportional to 528,769.89, 791,481.60 and 338,976.63

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Solution

The fourth proportional to 528,769.89, 791,481.60 and 338,976.63 is: 507,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,769.89 : 791,481.60 = 338,976.63 : x
  2. Step 2: Convert to fraction form
    528,769.89/791,481.60 = 338,976.63/x
  3. Step 3: Cross multiply
    528,769.89x = 791,481.60 × 338,976.63
  4. Step 4: Simplify right side
    528,769.89x = 268,293,765,475.01
  5. Step 5: Solve for x
    x = 268,293,765,475.01/528,769.89
  6. Step 6: Final answer
    x = 507,392.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.