Home / 1,172,554-1,758,382.64-639,790.24

Finding the Fourth Proportional to 1,172,554, 1,758,382.64 and 639,790.24

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Solution

The fourth proportional to 1,172,554, 1,758,382.64 and 639,790.24 is: 959,440.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,554 : 1,758,382.64 = 639,790.24 : x
  2. Step 2: Convert to fraction form
    1,172,554/1,758,382.64 = 639,790.24/x
  3. Step 3: Cross multiply
    1,172,554x = 1,758,382.64 × 639,790.24
  4. Step 4: Simplify right side
    1,172,554x = 1,124,996,051,257.43
  5. Step 5: Solve for x
    x = 1,124,996,051,257.43/1,172,554
  6. Step 6: Final answer
    x = 959,440.72

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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.