Home / 1,378,480.28-1,902,192.53-766,634.22

Finding the Fourth Proportional to 1,378,480.28, 1,902,192.53 and 766,634.22

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Solution

The fourth proportional to 1,378,480.28, 1,902,192.53 and 766,634.22 is: 1,057,893.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,480.28 : 1,902,192.53 = 766,634.22 : x
  2. Step 2: Convert to fraction form
    1,378,480.28/1,902,192.53 = 766,634.22/x
  3. Step 3: Cross multiply
    1,378,480.28x = 1,902,192.53 × 766,634.22
  4. Step 4: Simplify right side
    1,378,480.28x = 1,458,285,882,693.21
  5. Step 5: Solve for x
    x = 1,458,285,882,693.21/1,378,480.28
  6. Step 6: Final answer
    x = 1,057,893.91

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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.