Home / 1,989,733.95-2,747,917.31-1,371,147.48

Finding the Fourth Proportional to 1,989,733.95, 2,747,917.31 and 1,371,147.48

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Solution

The fourth proportional to 1,989,733.95, 2,747,917.31 and 1,371,147.48 is: 1,893,619.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,733.95 : 2,747,917.31 = 1,371,147.48 : x
  2. Step 2: Convert to fraction form
    1,989,733.95/2,747,917.31 = 1,371,147.48/x
  3. Step 3: Cross multiply
    1,989,733.95x = 2,747,917.31 × 1,371,147.48
  4. Step 4: Simplify right side
    1,989,733.95x = 3,767,799,887,999.14
  5. Step 5: Solve for x
    x = 3,767,799,887,999.14/1,989,733.95
  6. Step 6: Final answer
    x = 1,893,619.94

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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.