Home / 1,280,426.36-1,922,006.85-551,310.76

Finding the Fourth Proportional to 1,280,426.36, 1,922,006.85 and 551,310.76

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Solution

The fourth proportional to 1,280,426.36, 1,922,006.85 and 551,310.76 is: 827,554.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,426.36 : 1,922,006.85 = 551,310.76 : x
  2. Step 2: Convert to fraction form
    1,280,426.36/1,922,006.85 = 551,310.76/x
  3. Step 3: Cross multiply
    1,280,426.36x = 1,922,006.85 × 551,310.76
  4. Step 4: Simplify right side
    1,280,426.36x = 1,059,623,057,198.71
  5. Step 5: Solve for x
    x = 1,059,623,057,198.71/1,280,426.36
  6. Step 6: Final answer
    x = 827,554.86

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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.