Home / 465,721.20-698,581.80-324,003.60

Finding the Fourth Proportional to 465,721.20, 698,581.80 and 324,003.60

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Solution

The fourth proportional to 465,721.20, 698,581.80 and 324,003.60 is: 486,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,721.20 : 698,581.80 = 324,003.60 : x
  2. Step 2: Convert to fraction form
    465,721.20/698,581.80 = 324,003.60/x
  3. Step 3: Cross multiply
    465,721.20x = 698,581.80 × 324,003.60
  4. Step 4: Simplify right side
    465,721.20x = 226,343,018,094.48
  5. Step 5: Solve for x
    x = 226,343,018,094.48/465,721.20
  6. Step 6: Final answer
    x = 486,005.40

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Double scale
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Similar ratio
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1.5x scale

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.