Home / 919,716.01-1,379,073.63-320,516.29

Finding the Fourth Proportional to 919,716.01, 1,379,073.63 and 320,516.29

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Solution

The fourth proportional to 919,716.01, 1,379,073.63 and 320,516.29 is: 480,600.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,716.01 : 1,379,073.63 = 320,516.29 : x
  2. Step 2: Convert to fraction form
    919,716.01/1,379,073.63 = 320,516.29/x
  3. Step 3: Cross multiply
    919,716.01x = 1,379,073.63 × 320,516.29
  4. Step 4: Simplify right side
    919,716.01x = 442,015,563,524.43
  5. Step 5: Solve for x
    x = 442,015,563,524.43/919,716.01
  6. Step 6: Final answer
    x = 480,600.05

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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.