Home / 1,225,182.59-1,690,504.21-715,786.55

Finding the Fourth Proportional to 1,225,182.59, 1,690,504.21 and 715,786.55

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Solution

The fourth proportional to 1,225,182.59, 1,690,504.21 and 715,786.55 is: 987,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,182.59 : 1,690,504.21 = 715,786.55 : x
  2. Step 2: Convert to fraction form
    1,225,182.59/1,690,504.21 = 715,786.55/x
  3. Step 3: Cross multiply
    1,225,182.59x = 1,690,504.21 × 715,786.55
  4. Step 4: Simplify right side
    1,225,182.59x = 1,210,040,176,236.38
  5. Step 5: Solve for x
    x = 1,210,040,176,236.38/1,225,182.59
  6. Step 6: Final answer
    x = 987,640.69

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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.