Home / 919,720.50-1,379,658.52-254,872.50

Finding the Fourth Proportional to 919,720.50, 1,379,658.52 and 254,872.50

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Solution

The fourth proportional to 919,720.50, 1,379,658.52 and 254,872.50 is: 382,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,720.50 : 1,379,658.52 = 254,872.50 : x
  2. Step 2: Convert to fraction form
    919,720.50/1,379,658.52 = 254,872.50/x
  3. Step 3: Cross multiply
    919,720.50x = 1,379,658.52 × 254,872.50
  4. Step 4: Simplify right side
    919,720.50x = 351,637,016,138.70
  5. Step 5: Solve for x
    x = 351,637,016,138.70/919,720.50
  6. Step 6: Final answer
    x = 382,330.30

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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.