Home / 1,376,976.88-1,900,224.28-765,127.12

Finding the Fourth Proportional to 1,376,976.88, 1,900,224.28 and 765,127.12

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Solution

The fourth proportional to 1,376,976.88, 1,900,224.28 and 765,127.12 is: 1,055,873.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,976.88 : 1,900,224.28 = 765,127.12 : x
  2. Step 2: Convert to fraction form
    1,376,976.88/1,900,224.28 = 765,127.12/x
  3. Step 3: Cross multiply
    1,376,976.88x = 1,900,224.28 × 765,127.12
  4. Step 4: Simplify right side
    1,376,976.88x = 1,453,913,130,710.47
  5. Step 5: Solve for x
    x = 1,453,913,130,710.47/1,376,976.88
  6. Step 6: Final answer
    x = 1,055,873.31

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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.