Home / 1,086,288.37-1,500,322.08-715,409.21

Finding the Fourth Proportional to 1,086,288.37, 1,500,322.08 and 715,409.21

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Solution

The fourth proportional to 1,086,288.37, 1,500,322.08 and 715,409.21 is: 988,084.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,288.37 : 1,500,322.08 = 715,409.21 : x
  2. Step 2: Convert to fraction form
    1,086,288.37/1,500,322.08 = 715,409.21/x
  3. Step 3: Cross multiply
    1,086,288.37x = 1,500,322.08 × 715,409.21
  4. Step 4: Simplify right side
    1,086,288.37x = 1,073,344,240,431.95
  5. Step 5: Solve for x
    x = 1,073,344,240,431.95/1,086,288.37
  6. Step 6: Final answer
    x = 988,084.08

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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.