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Finding the Fourth Proportional to 322,499.70, 483,749.55 and 306,999.34

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Solution

The fourth proportional to 322,499.70, 483,749.55 and 306,999.34 is: 460,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,499.70 : 483,749.55 = 306,999.34 : x
  2. Step 2: Convert to fraction form
    322,499.70/483,749.55 = 306,999.34/x
  3. Step 3: Cross multiply
    322,499.70x = 483,749.55 × 306,999.34
  4. Step 4: Simplify right side
    322,499.70x = 148,510,791,365.92
  5. Step 5: Solve for x
    x = 148,510,791,365.92/322,499.70
  6. Step 6: Final answer
    x = 460,499.01

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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.