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Finding the Fourth Proportional to 505,480.80, 758,328.12 and 189,940.44

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Solution

The fourth proportional to 505,480.80, 758,328.12 and 189,940.44 is: 284,950.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,480.80 : 758,328.12 = 189,940.44 : x
  2. Step 2: Convert to fraction form
    505,480.80/758,328.12 = 189,940.44/x
  3. Step 3: Cross multiply
    505,480.80x = 758,328.12 × 189,940.44
  4. Step 4: Simplify right side
    505,480.80x = 144,037,176,777.17
  5. Step 5: Solve for x
    x = 144,037,176,777.17/505,480.80
  6. Step 6: Final answer
    x = 284,950.84

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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.