Home / 1,102,433.24-1,521,479.75-643,660.58

Finding the Fourth Proportional to 1,102,433.24, 1,521,479.75 and 643,660.58

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Solution

The fourth proportional to 1,102,433.24, 1,521,479.75 and 643,660.58 is: 888,322.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,433.24 : 1,521,479.75 = 643,660.58 : x
  2. Step 2: Convert to fraction form
    1,102,433.24/1,521,479.75 = 643,660.58/x
  3. Step 3: Cross multiply
    1,102,433.24x = 1,521,479.75 × 643,660.58
  4. Step 4: Simplify right side
    1,102,433.24x = 979,316,527,517.55
  5. Step 5: Solve for x
    x = 979,316,527,517.55/1,102,433.24
  6. Step 6: Final answer
    x = 888,322.75

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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.