Home / 456,621.84-629,995.32-275,389.20

Finding the Fourth Proportional to 456,621.84, 629,995.32 and 275,389.20

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Solution

The fourth proportional to 456,621.84, 629,995.32 and 275,389.20 is: 379,950.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,621.84 : 629,995.32 = 275,389.20 : x
  2. Step 2: Convert to fraction form
    456,621.84/629,995.32 = 275,389.20/x
  3. Step 3: Cross multiply
    456,621.84x = 629,995.32 × 275,389.20
  4. Step 4: Simplify right side
    456,621.84x = 173,493,907,178.54
  5. Step 5: Solve for x
    x = 173,493,907,178.54/456,621.84
  6. Step 6: Final answer
    x = 379,950.96

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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.