Home / 1,811,838.90-2,718,086.40-911,013.60

Finding the Fourth Proportional to 1,811,838.90, 2,718,086.40 and 911,013.60

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Solution

The fourth proportional to 1,811,838.90, 2,718,086.40 and 911,013.60 is: 1,366,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811,838.90 : 2,718,086.40 = 911,013.60 : x
  2. Step 2: Convert to fraction form
    1,811,838.90/2,718,086.40 = 911,013.60/x
  3. Step 3: Cross multiply
    1,811,838.90x = 2,718,086.40 × 911,013.60
  4. Step 4: Simplify right side
    1,811,838.90x = 2,476,213,676,375.04
  5. Step 5: Solve for x
    x = 2,476,213,676,375.04/1,811,838.90
  6. Step 6: Final answer
    x = 1,366,685.35

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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.