Home / 1,305,253.88-1,801,358.86-724,531.57

Finding the Fourth Proportional to 1,305,253.88, 1,801,358.86 and 724,531.57

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Solution

The fourth proportional to 1,305,253.88, 1,801,358.86 and 724,531.57 is: 999,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,253.88 : 1,801,358.86 = 724,531.57 : x
  2. Step 2: Convert to fraction form
    1,305,253.88/1,801,358.86 = 724,531.57/x
  3. Step 3: Cross multiply
    1,305,253.88x = 1,801,358.86 × 724,531.57
  4. Step 4: Simplify right side
    1,305,253.88x = 1,305,141,362,969.21
  5. Step 5: Solve for x
    x = 1,305,141,362,969.21/1,305,253.88
  6. Step 6: Final answer
    x = 999,913.80

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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.