Home / 1,212,822.20-1,819,319.70-371,372.60

Finding the Fourth Proportional to 1,212,822.20, 1,819,319.70 and 371,372.60

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Solution

The fourth proportional to 1,212,822.20, 1,819,319.70 and 371,372.60 is: 557,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,822.20 : 1,819,319.70 = 371,372.60 : x
  2. Step 2: Convert to fraction form
    1,212,822.20/1,819,319.70 = 371,372.60/x
  3. Step 3: Cross multiply
    1,212,822.20x = 1,819,319.70 × 371,372.60
  4. Step 4: Simplify right side
    1,212,822.20x = 675,645,487,220.22
  5. Step 5: Solve for x
    x = 675,645,487,220.22/1,212,822.20
  6. Step 6: Final answer
    x = 557,085.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.