Home / 817,107.94-1,127,617.54-449,589.86

Finding the Fourth Proportional to 817,107.94, 1,127,617.54 and 449,589.86

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Solution

The fourth proportional to 817,107.94, 1,127,617.54 and 449,589.86 is: 620,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,107.94 : 1,127,617.54 = 449,589.86 : x
  2. Step 2: Convert to fraction form
    817,107.94/1,127,617.54 = 449,589.86/x
  3. Step 3: Cross multiply
    817,107.94x = 1,127,617.54 × 449,589.86
  4. Step 4: Simplify right side
    817,107.94x = 506,965,411,942.14
  5. Step 5: Solve for x
    x = 506,965,411,942.14/817,107.94
  6. Step 6: Final answer
    x = 620,438.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.