Home / 1,489,790.73-2,055,666.15-938,420.76

Finding the Fourth Proportional to 1,489,790.73, 2,055,666.15 and 938,420.76

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Solution

The fourth proportional to 1,489,790.73, 2,055,666.15 and 938,420.76 is: 1,294,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,790.73 : 2,055,666.15 = 938,420.76 : x
  2. Step 2: Convert to fraction form
    1,489,790.73/2,055,666.15 = 938,420.76/x
  3. Step 3: Cross multiply
    1,489,790.73x = 2,055,666.15 × 938,420.76
  4. Step 4: Simplify right side
    1,489,790.73x = 1,929,079,790,789.27
  5. Step 5: Solve for x
    x = 1,929,079,790,789.27/1,489,790.73
  6. Step 6: Final answer
    x = 1,294,866.29

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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.