Home / 1,240,211.44-1,711,059.66-781,367

Finding the Fourth Proportional to 1,240,211.44, 1,711,059.66 and 781,367

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Solution

The fourth proportional to 1,240,211.44, 1,711,059.66 and 781,367 is: 1,078,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,211.44 : 1,711,059.66 = 781,367 : x
  2. Step 2: Convert to fraction form
    1,240,211.44/1,711,059.66 = 781,367/x
  3. Step 3: Cross multiply
    1,240,211.44x = 1,711,059.66 × 781,367
  4. Step 4: Simplify right side
    1,240,211.44x = 1,336,965,553,355.22
  5. Step 5: Solve for x
    x = 1,336,965,553,355.22/1,240,211.44
  6. Step 6: Final answer
    x = 1,078,014.21

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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.