Home / 1,102,112.33-1,521,138.77-636,985.96

Finding the Fourth Proportional to 1,102,112.33, 1,521,138.77 and 636,985.96

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Solution

The fourth proportional to 1,102,112.33, 1,521,138.77 and 636,985.96 is: 879,169.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,112.33 : 1,521,138.77 = 636,985.96 : x
  2. Step 2: Convert to fraction form
    1,102,112.33/1,521,138.77 = 636,985.96/x
  3. Step 3: Cross multiply
    1,102,112.33x = 1,521,138.77 × 636,985.96
  4. Step 4: Simplify right side
    1,102,112.33x = 968,944,032,713.89
  5. Step 5: Solve for x
    x = 968,944,032,713.89/1,102,112.33
  6. Step 6: Final answer
    x = 879,169.95

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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.