Home / 811,274.20-1,216,911.30-733,859.80

Finding the Fourth Proportional to 811,274.20, 1,216,911.30 and 733,859.80

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Solution

The fourth proportional to 811,274.20, 1,216,911.30 and 733,859.80 is: 1,100,789.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,274.20 : 1,216,911.30 = 733,859.80 : x
  2. Step 2: Convert to fraction form
    811,274.20/1,216,911.30 = 733,859.80/x
  3. Step 3: Cross multiply
    811,274.20x = 1,216,911.30 × 733,859.80
  4. Step 4: Simplify right side
    811,274.20x = 893,042,283,235.74
  5. Step 5: Solve for x
    x = 893,042,283,235.74/811,274.20
  6. Step 6: Final answer
    x = 1,100,789.70

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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.