Home / 505,255.32-697,257.18-278,895.96

Finding the Fourth Proportional to 505,255.32, 697,257.18 and 278,895.96

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Solution

The fourth proportional to 505,255.32, 697,257.18 and 278,895.96 is: 384,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,255.32 : 697,257.18 = 278,895.96 : x
  2. Step 2: Convert to fraction form
    505,255.32/697,257.18 = 278,895.96/x
  3. Step 3: Cross multiply
    505,255.32x = 697,257.18 × 278,895.96
  4. Step 4: Simplify right side
    505,255.32x = 194,462,210,582.99
  5. Step 5: Solve for x
    x = 194,462,210,582.99/505,255.32
  6. Step 6: Final answer
    x = 384,879.10

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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.