Home / 1,115,039.80-1,538,756.76-605,742.60

Finding the Fourth Proportional to 1,115,039.80, 1,538,756.76 and 605,742.60

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Solution

The fourth proportional to 1,115,039.80, 1,538,756.76 and 605,742.60 is: 835,925.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,039.80 : 1,538,756.76 = 605,742.60 : x
  2. Step 2: Convert to fraction form
    1,115,039.80/1,538,756.76 = 605,742.60/x
  3. Step 3: Cross multiply
    1,115,039.80x = 1,538,756.76 × 605,742.60
  4. Step 4: Simplify right side
    1,115,039.80x = 932,090,520,569.98
  5. Step 5: Solve for x
    x = 932,090,520,569.98/1,115,039.80
  6. Step 6: Final answer
    x = 835,925.79

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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.