Home / 1,375,335.20-1,897,867.44-763,439.84

Finding the Fourth Proportional to 1,375,335.20, 1,897,867.44 and 763,439.84

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Solution

The fourth proportional to 1,375,335.20, 1,897,867.44 and 763,439.84 is: 1,053,494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,335.20 : 1,897,867.44 = 763,439.84 : x
  2. Step 2: Convert to fraction form
    1,375,335.20/1,897,867.44 = 763,439.84/x
  3. Step 3: Cross multiply
    1,375,335.20x = 1,897,867.44 × 763,439.84
  4. Step 4: Simplify right side
    1,375,335.20x = 1,448,907,614,734.81
  5. Step 5: Solve for x
    x = 1,448,907,614,734.81/1,375,335.20
  6. Step 6: Final answer
    x = 1,053,494.17

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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.