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Finding the Fourth Proportional to 505,448.22, 697,500.27 and 279,088.86

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Solution

The fourth proportional to 505,448.22, 697,500.27 and 279,088.86 is: 385,132.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,448.22 : 697,500.27 = 279,088.86 : x
  2. Step 2: Convert to fraction form
    505,448.22/697,500.27 = 279,088.86/x
  3. Step 3: Cross multiply
    505,448.22x = 697,500.27 × 279,088.86
  4. Step 4: Simplify right side
    505,448.22x = 194,664,555,203.99
  5. Step 5: Solve for x
    x = 194,664,555,203.99/505,448.22
  6. Step 6: Final answer
    x = 385,132.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.