Home / 787,787.18-1,179,786.36-449,803.43

Finding the Fourth Proportional to 787,787.18, 1,179,786.36 and 449,803.43

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Solution

The fourth proportional to 787,787.18, 1,179,786.36 and 449,803.43 is: 673,623.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,787.18 : 1,179,786.36 = 449,803.43 : x
  2. Step 2: Convert to fraction form
    787,787.18/1,179,786.36 = 449,803.43/x
  3. Step 3: Cross multiply
    787,787.18x = 1,179,786.36 × 449,803.43
  4. Step 4: Simplify right side
    787,787.18x = 530,671,951,607.25
  5. Step 5: Solve for x
    x = 530,671,951,607.25/787,787.18
  6. Step 6: Final answer
    x = 673,623.49

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1.5x scale

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.