Home / 1,241,325.92-1,861,938.30-431,895.64

Finding the Fourth Proportional to 1,241,325.92, 1,861,938.30 and 431,895.64

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Solution

The fourth proportional to 1,241,325.92, 1,861,938.30 and 431,895.64 is: 647,825.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,325.92 : 1,861,938.30 = 431,895.64 : x
  2. Step 2: Convert to fraction form
    1,241,325.92/1,861,938.30 = 431,895.64/x
  3. Step 3: Cross multiply
    1,241,325.92x = 1,861,938.30 × 431,895.64
  4. Step 4: Simplify right side
    1,241,325.92x = 804,163,033,719.01
  5. Step 5: Solve for x
    x = 804,163,033,719.01/1,241,325.92
  6. Step 6: Final answer
    x = 647,825.86

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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.