Home / 919,611.76-1,379,418.20-254,763.76

Finding the Fourth Proportional to 919,611.76, 1,379,418.20 and 254,763.76

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Solution

The fourth proportional to 919,611.76, 1,379,418.20 and 254,763.76 is: 382,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,611.76 : 1,379,418.20 = 254,763.76 : x
  2. Step 2: Convert to fraction form
    919,611.76/1,379,418.20 = 254,763.76/x
  3. Step 3: Cross multiply
    919,611.76x = 1,379,418.20 × 254,763.76
  4. Step 4: Simplify right side
    919,611.76x = 351,425,767,244.43
  5. Step 5: Solve for x
    x = 351,425,767,244.43/919,611.76
  6. Step 6: Final answer
    x = 382,145.80

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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.