Home / 1,691,899.78-2,538,145.61-1,009,330.25

Finding the Fourth Proportional to 1,691,899.78, 2,538,145.61 and 1,009,330.25

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Solution

The fourth proportional to 1,691,899.78, 2,538,145.61 and 1,009,330.25 is: 1,514,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,899.78 : 2,538,145.61 = 1,009,330.25 : x
  2. Step 2: Convert to fraction form
    1,691,899.78/2,538,145.61 = 1,009,330.25/x
  3. Step 3: Cross multiply
    1,691,899.78x = 2,538,145.61 × 1,009,330.25
  4. Step 4: Simplify right side
    1,691,899.78x = 2,561,827,125,340.32
  5. Step 5: Solve for x
    x = 2,561,827,125,340.32/1,691,899.78
  6. Step 6: Final answer
    x = 1,514,171.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.