Home / 1,280,819.52-1,921,185.54-607,223.52

Finding the Fourth Proportional to 1,280,819.52, 1,921,185.54 and 607,223.52

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Solution

The fourth proportional to 1,280,819.52, 1,921,185.54 and 607,223.52 is: 910,814.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,819.52 : 1,921,185.54 = 607,223.52 : x
  2. Step 2: Convert to fraction form
    1,280,819.52/1,921,185.54 = 607,223.52/x
  3. Step 3: Cross multiply
    1,280,819.52x = 1,921,185.54 × 607,223.52
  4. Step 4: Simplify right side
    1,280,819.52x = 1,166,589,046,171.90
  5. Step 5: Solve for x
    x = 1,166,589,046,171.90/1,280,819.52
  6. Step 6: Final answer
    x = 910,814.54

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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.