Home / 1,198,171.39-1,653,690.09-708,120.90

Finding the Fourth Proportional to 1,198,171.39, 1,653,690.09 and 708,120.90

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Solution

The fourth proportional to 1,198,171.39, 1,653,690.09 and 708,120.90 is: 977,333.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,171.39 : 1,653,690.09 = 708,120.90 : x
  2. Step 2: Convert to fraction form
    1,198,171.39/1,653,690.09 = 708,120.90/x
  3. Step 3: Cross multiply
    1,198,171.39x = 1,653,690.09 × 708,120.90
  4. Step 4: Simplify right side
    1,198,171.39x = 1,171,012,514,851.88
  5. Step 5: Solve for x
    x = 1,171,012,514,851.88/1,198,171.39
  6. Step 6: Final answer
    x = 977,333.06

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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.