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Finding the Fourth Proportional to 505,910.80, 758,909.40 and 173,486.80

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Solution

The fourth proportional to 505,910.80, 758,909.40 and 173,486.80 is: 260,245.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,910.80 : 758,909.40 = 173,486.80 : x
  2. Step 2: Convert to fraction form
    505,910.80/758,909.40 = 173,486.80/x
  3. Step 3: Cross multiply
    505,910.80x = 758,909.40 × 173,486.80
  4. Step 4: Simplify right side
    505,910.80x = 131,660,763,295.92
  5. Step 5: Solve for x
    x = 131,660,763,295.92/505,910.80
  6. Step 6: Final answer
    x = 260,245.01

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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.