Home / 1,661,139.81-2,292,394.37-982,070.37

Finding the Fourth Proportional to 1,661,139.81, 2,292,394.37 and 982,070.37

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Solution

The fourth proportional to 1,661,139.81, 2,292,394.37 and 982,070.37 is: 1,355,269.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,139.81 : 2,292,394.37 = 982,070.37 : x
  2. Step 2: Convert to fraction form
    1,661,139.81/2,292,394.37 = 982,070.37/x
  3. Step 3: Cross multiply
    1,661,139.81x = 2,292,394.37 × 982,070.37
  4. Step 4: Simplify right side
    1,661,139.81x = 2,251,292,582,221.47
  5. Step 5: Solve for x
    x = 2,251,292,582,221.47/1,661,139.81
  6. Step 6: Final answer
    x = 1,355,269.78

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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.