Home / 1,115,121.88-1,538,875.56-605,824.12

Finding the Fourth Proportional to 1,115,121.88, 1,538,875.56 and 605,824.12

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Solution

The fourth proportional to 1,115,121.88, 1,538,875.56 and 605,824.12 is: 836,041.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,121.88 : 1,538,875.56 = 605,824.12 : x
  2. Step 2: Convert to fraction form
    1,115,121.88/1,538,875.56 = 605,824.12/x
  3. Step 3: Cross multiply
    1,115,121.88x = 1,538,875.56 × 605,824.12
  4. Step 4: Simplify right side
    1,115,121.88x = 932,287,931,926.51
  5. Step 5: Solve for x
    x = 932,287,931,926.51/1,115,121.88
  6. Step 6: Final answer
    x = 836,041.29

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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.