Home / 1,226,639.82-1,692,782.10-682,781.52

Finding the Fourth Proportional to 1,226,639.82, 1,692,782.10 and 682,781.52

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Solution

The fourth proportional to 1,226,639.82, 1,692,782.10 and 682,781.52 is: 942,249.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,639.82 : 1,692,782.10 = 682,781.52 : x
  2. Step 2: Convert to fraction form
    1,226,639.82/1,692,782.10 = 682,781.52/x
  3. Step 3: Cross multiply
    1,226,639.82x = 1,692,782.10 × 682,781.52
  4. Step 4: Simplify right side
    1,226,639.82x = 1,155,800,335,266.79
  5. Step 5: Solve for x
    x = 1,155,800,335,266.79/1,226,639.82
  6. Step 6: Final answer
    x = 942,249.16

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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.