Home / 1,086,288.62-1,500,322.43-715,409.46

Finding the Fourth Proportional to 1,086,288.62, 1,500,322.43 and 715,409.46

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Solution

The fourth proportional to 1,086,288.62, 1,500,322.43 and 715,409.46 is: 988,084.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,288.62 : 1,500,322.43 = 715,409.46 : x
  2. Step 2: Convert to fraction form
    1,086,288.62/1,500,322.43 = 715,409.46/x
  3. Step 3: Cross multiply
    1,086,288.62x = 1,500,322.43 × 715,409.46
  4. Step 4: Simplify right side
    1,086,288.62x = 1,073,344,863,222.99
  5. Step 5: Solve for x
    x = 1,073,344,863,222.99/1,086,288.62
  6. Step 6: Final answer
    x = 988,084.42

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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.