Home / 3,115,505.20-4,669,758.60-1,318,082.80

Finding the Fourth Proportional to 3,115,505.20, 4,669,758.60 and 1,318,082.80

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Solution

The fourth proportional to 3,115,505.20, 4,669,758.60 and 1,318,082.80 is: 1,975,643.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,505.20 : 4,669,758.60 = 1,318,082.80 : x
  2. Step 2: Convert to fraction form
    3,115,505.20/4,669,758.60 = 1,318,082.80/x
  3. Step 3: Cross multiply
    3,115,505.20x = 4,669,758.60 × 1,318,082.80
  4. Step 4: Simplify right side
    3,115,505.20x = 6,155,128,490,812.08
  5. Step 5: Solve for x
    x = 6,155,128,490,812.08/3,115,505.20
  6. Step 6: Final answer
    x = 1,975,643.79

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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.