Home / 1,392,592.35-1,921,782.34-876,687.60

Finding the Fourth Proportional to 1,392,592.35, 1,921,782.34 and 876,687.60

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Solution

The fourth proportional to 1,392,592.35, 1,921,782.34 and 876,687.60 is: 1,209,831.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,592.35 : 1,921,782.34 = 876,687.60 : x
  2. Step 2: Convert to fraction form
    1,392,592.35/1,921,782.34 = 876,687.60/x
  3. Step 3: Cross multiply
    1,392,592.35x = 1,921,782.34 × 876,687.60
  4. Step 4: Simplify right side
    1,392,592.35x = 1,684,802,741,668.92
  5. Step 5: Solve for x
    x = 1,684,802,741,668.92/1,392,592.35
  6. Step 6: Final answer
    x = 1,209,831.96

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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.