Home / 1,280,426.86-1,922,007.60-551,311.26

Finding the Fourth Proportional to 1,280,426.86, 1,922,007.60 and 551,311.26

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Solution

The fourth proportional to 1,280,426.86, 1,922,007.60 and 551,311.26 is: 827,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,426.86 : 1,922,007.60 = 551,311.26 : x
  2. Step 2: Convert to fraction form
    1,280,426.86/1,922,007.60 = 551,311.26/x
  3. Step 3: Cross multiply
    1,280,426.86x = 1,922,007.60 × 551,311.26
  4. Step 4: Simplify right side
    1,280,426.86x = 1,059,624,431,685.58
  5. Step 5: Solve for x
    x = 1,059,624,431,685.58/1,280,426.86
  6. Step 6: Final answer
    x = 827,555.61

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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.