Home / 1,086,521.50-1,629,813.07-287,803.11

Finding the Fourth Proportional to 1,086,521.50, 1,629,813.07 and 287,803.11

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Solution

The fourth proportional to 1,086,521.50, 1,629,813.07 and 287,803.11 is: 431,712.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,521.50 : 1,629,813.07 = 287,803.11 : x
  2. Step 2: Convert to fraction form
    1,086,521.50/1,629,813.07 = 287,803.11/x
  3. Step 3: Cross multiply
    1,086,521.50x = 1,629,813.07 × 287,803.11
  4. Step 4: Simplify right side
    1,086,521.50x = 469,065,270,264.65
  5. Step 5: Solve for x
    x = 469,065,270,264.65/1,086,521.50
  6. Step 6: Final answer
    x = 431,712.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.