Home / 1,106,930.20-1,660,877.77-387,787.80

Finding the Fourth Proportional to 1,106,930.20, 1,660,877.77 and 387,787.80

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Solution

The fourth proportional to 1,106,930.20, 1,660,877.77 and 387,787.80 is: 581,850.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,930.20 : 1,660,877.77 = 387,787.80 : x
  2. Step 2: Convert to fraction form
    1,106,930.20/1,660,877.77 = 387,787.80/x
  3. Step 3: Cross multiply
    1,106,930.20x = 1,660,877.77 × 387,787.80
  4. Step 4: Simplify right side
    1,106,930.20x = 644,068,136,497.21
  5. Step 5: Solve for x
    x = 644,068,136,497.21/1,106,930.20
  6. Step 6: Final answer
    x = 581,850.72

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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.