Home / 727,716.40-1,091,185.80-254,417.20

Finding the Fourth Proportional to 727,716.40, 1,091,185.80 and 254,417.20

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Solution

The fourth proportional to 727,716.40, 1,091,185.80 and 254,417.20 is: 381,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,716.40 : 1,091,185.80 = 254,417.20 : x
  2. Step 2: Convert to fraction form
    727,716.40/1,091,185.80 = 254,417.20/x
  3. Step 3: Cross multiply
    727,716.40x = 1,091,185.80 × 254,417.20
  4. Step 4: Simplify right side
    727,716.40x = 277,616,435,915.76
  5. Step 5: Solve for x
    x = 277,616,435,915.76/727,716.40
  6. Step 6: Final answer
    x = 381,489.87

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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.