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Finding the Fourth Proportional to 637,198.66, 879,334.44 and 350,716.72

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Solution

The fourth proportional to 637,198.66, 879,334.44 and 350,716.72 is: 483,989.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,198.66 : 879,334.44 = 350,716.72 : x
  2. Step 2: Convert to fraction form
    637,198.66/879,334.44 = 350,716.72/x
  3. Step 3: Cross multiply
    637,198.66x = 879,334.44 × 350,716.72
  4. Step 4: Simplify right side
    637,198.66x = 308,397,290,579.84
  5. Step 5: Solve for x
    x = 308,397,290,579.84/637,198.66
  6. Step 6: Final answer
    x = 483,989.23

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1.5x scale

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.