Home / 1,187,836-1,781,719.44-439,865.44

Finding the Fourth Proportional to 1,187,836, 1,781,719.44 and 439,865.44

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Solution

The fourth proportional to 1,187,836, 1,781,719.44 and 439,865.44 is: 659,785.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,836 : 1,781,719.44 = 439,865.44 : x
  2. Step 2: Convert to fraction form
    1,187,836/1,781,719.44 = 439,865.44/x
  3. Step 3: Cross multiply
    1,187,836x = 1,781,719.44 × 439,865.44
  4. Step 4: Simplify right side
    1,187,836x = 783,716,805,432.15
  5. Step 5: Solve for x
    x = 783,716,805,432.15/1,187,836
  6. Step 6: Final answer
    x = 659,785.36

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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.