Home / 1,293,120.54-1,784,561.71-720,160.71

Finding the Fourth Proportional to 1,293,120.54, 1,784,561.71 and 720,160.71

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Solution

The fourth proportional to 1,293,120.54, 1,784,561.71 and 720,160.71 is: 993,852.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,120.54 : 1,784,561.71 = 720,160.71 : x
  2. Step 2: Convert to fraction form
    1,293,120.54/1,784,561.71 = 720,160.71/x
  3. Step 3: Cross multiply
    1,293,120.54x = 1,784,561.71 × 720,160.71
  4. Step 4: Simplify right side
    1,293,120.54x = 1,285,171,228,112.41
  5. Step 5: Solve for x
    x = 1,285,171,228,112.41/1,293,120.54
  6. Step 6: Final answer
    x = 993,852.61

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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.