Home / 648,126.80-972,190.20-332,615.60

Finding the Fourth Proportional to 648,126.80, 972,190.20 and 332,615.60

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Solution

The fourth proportional to 648,126.80, 972,190.20 and 332,615.60 is: 498,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,126.80 : 972,190.20 = 332,615.60 : x
  2. Step 2: Convert to fraction form
    648,126.80/972,190.20 = 332,615.60/x
  3. Step 3: Cross multiply
    648,126.80x = 972,190.20 × 332,615.60
  4. Step 4: Simplify right side
    648,126.80x = 323,365,626,687.12
  5. Step 5: Solve for x
    x = 323,365,626,687.12/648,126.80
  6. Step 6: Final answer
    x = 498,923.40

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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.