Home / 1,138,634.50-1,571,268.41-679,823.77

Finding the Fourth Proportional to 1,138,634.50, 1,571,268.41 and 679,823.77

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Solution

The fourth proportional to 1,138,634.50, 1,571,268.41 and 679,823.77 is: 938,128.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,634.50 : 1,571,268.41 = 679,823.77 : x
  2. Step 2: Convert to fraction form
    1,138,634.50/1,571,268.41 = 679,823.77/x
  3. Step 3: Cross multiply
    1,138,634.50x = 1,571,268.41 × 679,823.77
  4. Step 4: Simplify right side
    1,138,634.50x = 1,068,185,614,168.11
  5. Step 5: Solve for x
    x = 1,068,185,614,168.11/1,138,634.50
  6. Step 6: Final answer
    x = 938,128.62

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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.