Home / 1,376,936.88-1,900,132.20-765,074.40

Finding the Fourth Proportional to 1,376,936.88, 1,900,132.20 and 765,074.40

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Solution

The fourth proportional to 1,376,936.88, 1,900,132.20 and 765,074.40 is: 1,055,780.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,936.88 : 1,900,132.20 = 765,074.40 : x
  2. Step 2: Convert to fraction form
    1,376,936.88/1,900,132.20 = 765,074.40/x
  3. Step 3: Cross multiply
    1,376,936.88x = 1,900,132.20 × 765,074.40
  4. Step 4: Simplify right side
    1,376,936.88x = 1,453,742,502,835.68
  5. Step 5: Solve for x
    x = 1,453,742,502,835.68/1,376,936.88
  6. Step 6: Final answer
    x = 1,055,780.06

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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.