Home / 919,988.72-1,379,546.04-320,877.08

Finding the Fourth Proportional to 919,988.72, 1,379,546.04 and 320,877.08

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Solution

The fourth proportional to 919,988.72, 1,379,546.04 and 320,877.08 is: 481,163.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,988.72 : 1,379,546.04 = 320,877.08 : x
  2. Step 2: Convert to fraction form
    919,988.72/1,379,546.04 = 320,877.08/x
  3. Step 3: Cross multiply
    919,988.72x = 1,379,546.04 × 320,877.08
  4. Step 4: Simplify right side
    919,988.72x = 442,664,705,040.76
  5. Step 5: Solve for x
    x = 442,664,705,040.76/919,988.72
  6. Step 6: Final answer
    x = 481,163.19

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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.