Home / 649,019.60-973,529.40-228,240.80

Finding the Fourth Proportional to 649,019.60, 973,529.40 and 228,240.80

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Solution

The fourth proportional to 649,019.60, 973,529.40 and 228,240.80 is: 342,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,019.60 : 973,529.40 = 228,240.80 : x
  2. Step 2: Convert to fraction form
    649,019.60/973,529.40 = 228,240.80/x
  3. Step 3: Cross multiply
    649,019.60x = 973,529.40 × 228,240.80
  4. Step 4: Simplify right side
    649,019.60x = 222,199,129,079.52
  5. Step 5: Solve for x
    x = 222,199,129,079.52/649,019.60
  6. Step 6: Final answer
    x = 342,361.20

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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.