Home / 1,702,128.80-2,348,896.20-938,165.60

Finding the Fourth Proportional to 1,702,128.80, 2,348,896.20 and 938,165.60

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Solution

The fourth proportional to 1,702,128.80, 2,348,896.20 and 938,165.60 is: 1,294,645.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702,128.80 : 2,348,896.20 = 938,165.60 : x
  2. Step 2: Convert to fraction form
    1,702,128.80/2,348,896.20 = 938,165.60/x
  3. Step 3: Cross multiply
    1,702,128.80x = 2,348,896.20 × 938,165.60
  4. Step 4: Simplify right side
    1,702,128.80x = 2,203,653,612,810.72
  5. Step 5: Solve for x
    x = 2,203,653,612,810.72/1,702,128.80
  6. Step 6: Final answer
    x = 1,294,645.63

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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.