Home / 1,387,639.31-1,907,580.93-1,193,335.29

Finding the Fourth Proportional to 1,387,639.31, 1,907,580.93 and 1,193,335.29

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Solution

The fourth proportional to 1,387,639.31, 1,907,580.93 and 1,193,335.29 is: 1,640,472.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,639.31 : 1,907,580.93 = 1,193,335.29 : x
  2. Step 2: Convert to fraction form
    1,387,639.31/1,907,580.93 = 1,193,335.29/x
  3. Step 3: Cross multiply
    1,387,639.31x = 1,907,580.93 × 1,193,335.29
  4. Step 4: Simplify right side
    1,387,639.31x = 2,276,383,642,300.02
  5. Step 5: Solve for x
    x = 2,276,383,642,300.02/1,387,639.31
  6. Step 6: Final answer
    x = 1,640,472.16

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.