Home / 727,715.40-1,091,184.30-254,416.20

Finding the Fourth Proportional to 727,715.40, 1,091,184.30 and 254,416.20

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Solution

The fourth proportional to 727,715.40, 1,091,184.30 and 254,416.20 is: 381,488.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,715.40 : 1,091,184.30 = 254,416.20 : x
  2. Step 2: Convert to fraction form
    727,715.40/1,091,184.30 = 254,416.20/x
  3. Step 3: Cross multiply
    727,715.40x = 1,091,184.30 × 254,416.20
  4. Step 4: Simplify right side
    727,715.40x = 277,614,963,105.66
  5. Step 5: Solve for x
    x = 277,614,963,105.66/727,715.40
  6. Step 6: Final answer
    x = 381,488.37

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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.