Home / 1,861,485.36-2,792,676.78-646,885.50

Finding the Fourth Proportional to 1,861,485.36, 2,792,676.78 and 646,885.50

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Solution

The fourth proportional to 1,861,485.36, 2,792,676.78 and 646,885.50 is: 970,484.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,485.36 : 2,792,676.78 = 646,885.50 : x
  2. Step 2: Convert to fraction form
    1,861,485.36/2,792,676.78 = 646,885.50/x
  3. Step 3: Cross multiply
    1,861,485.36x = 2,792,676.78 × 646,885.50
  4. Step 4: Simplify right side
    1,861,485.36x = 1,806,542,115,168.69
  5. Step 5: Solve for x
    x = 1,806,542,115,168.69/1,861,485.36
  6. Step 6: Final answer
    x = 970,484.19

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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.