Home / 1,392,594.62-1,921,785.44-876,689.84

Finding the Fourth Proportional to 1,392,594.62, 1,921,785.44 and 876,689.84

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Solution

The fourth proportional to 1,392,594.62, 1,921,785.44 and 876,689.84 is: 1,209,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,594.62 : 1,921,785.44 = 876,689.84 : x
  2. Step 2: Convert to fraction form
    1,392,594.62/1,921,785.44 = 876,689.84/x
  3. Step 3: Cross multiply
    1,392,594.62x = 1,921,785.44 × 876,689.84
  4. Step 4: Simplify right side
    1,392,594.62x = 1,684,809,770,328.94
  5. Step 5: Solve for x
    x = 1,684,809,770,328.94/1,392,594.62
  6. Step 6: Final answer
    x = 1,209,835.05

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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.