Home / 1,261,509.63-1,893,100.18-693,287.54

Finding the Fourth Proportional to 1,261,509.63, 1,893,100.18 and 693,287.54

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Solution

The fourth proportional to 1,261,509.63, 1,893,100.18 and 693,287.54 is: 1,040,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,509.63 : 1,893,100.18 = 693,287.54 : x
  2. Step 2: Convert to fraction form
    1,261,509.63/1,893,100.18 = 693,287.54/x
  3. Step 3: Cross multiply
    1,261,509.63x = 1,893,100.18 × 693,287.54
  4. Step 4: Simplify right side
    1,261,509.63x = 1,312,462,765,915.95
  5. Step 5: Solve for x
    x = 1,312,462,765,915.95/1,261,509.63
  6. Step 6: Final answer
    x = 1,040,390.61

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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.