Home / 1,112,915.28-1,669,179.06-513,825.24

Finding the Fourth Proportional to 1,112,915.28, 1,669,179.06 and 513,825.24

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Solution

The fourth proportional to 1,112,915.28, 1,669,179.06 and 513,825.24 is: 770,648.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,915.28 : 1,669,179.06 = 513,825.24 : x
  2. Step 2: Convert to fraction form
    1,112,915.28/1,669,179.06 = 513,825.24/x
  3. Step 3: Cross multiply
    1,112,915.28x = 1,669,179.06 × 513,825.24
  4. Step 4: Simplify right side
    1,112,915.28x = 857,666,331,107.47
  5. Step 5: Solve for x
    x = 857,666,331,107.47/1,112,915.28
  6. Step 6: Final answer
    x = 770,648.36

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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.