Home / 3,007,981.55-4,512,120.15-985,405.88

Finding the Fourth Proportional to 3,007,981.55, 4,512,120.15 and 985,405.88

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Solution

The fourth proportional to 3,007,981.55, 4,512,120.15 and 985,405.88 is: 1,478,157.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007,981.55 : 4,512,120.15 = 985,405.88 : x
  2. Step 2: Convert to fraction form
    3,007,981.55/4,512,120.15 = 985,405.88/x
  3. Step 3: Cross multiply
    3,007,981.55x = 4,512,120.15 × 985,405.88
  4. Step 4: Simplify right side
    3,007,981.55x = 4,446,269,742,052.05
  5. Step 5: Solve for x
    x = 4,446,269,742,052.05/3,007,981.55
  6. Step 6: Final answer
    x = 1,478,157.25

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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.