Home / 1,085,898.97-1,627,880.55-412,453.20

Finding the Fourth Proportional to 1,085,898.97, 1,627,880.55 and 412,453.20

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Solution

The fourth proportional to 1,085,898.97, 1,627,880.55 and 412,453.20 is: 618,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,898.97 : 1,627,880.55 = 412,453.20 : x
  2. Step 2: Convert to fraction form
    1,085,898.97/1,627,880.55 = 412,453.20/x
  3. Step 3: Cross multiply
    1,085,898.97x = 1,627,880.55 × 412,453.20
  4. Step 4: Simplify right side
    1,085,898.97x = 671,424,542,065.26
  5. Step 5: Solve for x
    x = 671,424,542,065.26/1,085,898.97
  6. Step 6: Final answer
    x = 618,312.16

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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.