Home / 1,287,811.92-1,930,930.56-614,099.28

Finding the Fourth Proportional to 1,287,811.92, 1,930,930.56 and 614,099.28

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Solution

The fourth proportional to 1,287,811.92, 1,930,930.56 and 614,099.28 is: 920,773.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,811.92 : 1,930,930.56 = 614,099.28 : x
  2. Step 2: Convert to fraction form
    1,287,811.92/1,930,930.56 = 614,099.28/x
  3. Step 3: Cross multiply
    1,287,811.92x = 1,930,930.56 × 614,099.28
  4. Step 4: Simplify right side
    1,287,811.92x = 1,185,783,066,626.00
  5. Step 5: Solve for x
    x = 1,185,783,066,626.00/1,287,811.92
  6. Step 6: Final answer
    x = 920,773.48

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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.