Home / 1,238,400.80-1,708,974.16-694,536.48

Finding the Fourth Proportional to 1,238,400.80, 1,708,974.16 and 694,536.48

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Solution

The fourth proportional to 1,238,400.80, 1,708,974.16 and 694,536.48 is: 958,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,400.80 : 1,708,974.16 = 694,536.48 : x
  2. Step 2: Convert to fraction form
    1,238,400.80/1,708,974.16 = 694,536.48/x
  3. Step 3: Cross multiply
    1,238,400.80x = 1,708,974.16 × 694,536.48
  4. Step 4: Simplify right side
    1,238,400.80x = 1,186,944,897,497.36
  5. Step 5: Solve for x
    x = 1,186,944,897,497.36/1,238,400.80
  6. Step 6: Final answer
    x = 958,449.72

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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.