Home / 727,736.40-1,091,215.80-254,437.20

Finding the Fourth Proportional to 727,736.40, 1,091,215.80 and 254,437.20

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Solution

The fourth proportional to 727,736.40, 1,091,215.80 and 254,437.20 is: 381,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,736.40 : 1,091,215.80 = 254,437.20 : x
  2. Step 2: Convert to fraction form
    727,736.40/1,091,215.80 = 254,437.20/x
  3. Step 3: Cross multiply
    727,736.40x = 1,091,215.80 × 254,437.20
  4. Step 4: Simplify right side
    727,736.40x = 277,645,892,747.76
  5. Step 5: Solve for x
    x = 277,645,892,747.76/727,736.40
  6. Step 6: Final answer
    x = 381,519.86

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1.5x scale

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.