Home / 1,080,915.90-1,491,812.13-622,021.06

Finding the Fourth Proportional to 1,080,915.90, 1,491,812.13 and 622,021.06

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Solution

The fourth proportional to 1,080,915.90, 1,491,812.13 and 622,021.06 is: 858,474.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,915.90 : 1,491,812.13 = 622,021.06 : x
  2. Step 2: Convert to fraction form
    1,080,915.90/1,491,812.13 = 622,021.06/x
  3. Step 3: Cross multiply
    1,080,915.90x = 1,491,812.13 × 622,021.06
  4. Step 4: Simplify right side
    1,080,915.90x = 927,938,562,423.46
  5. Step 5: Solve for x
    x = 927,938,562,423.46/1,080,915.90
  6. Step 6: Final answer
    x = 858,474.34

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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.