Home / 505,251.87-697,246.16-278,895.75

Finding the Fourth Proportional to 505,251.87, 697,246.16 and 278,895.75

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Solution

The fourth proportional to 505,251.87, 697,246.16 and 278,895.75 is: 384,875.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,251.87 : 697,246.16 = 278,895.75 : x
  2. Step 2: Convert to fraction form
    505,251.87/697,246.16 = 278,895.75/x
  3. Step 3: Cross multiply
    505,251.87x = 697,246.16 × 278,895.75
  4. Step 4: Simplify right side
    505,251.87x = 194,458,989,333.34
  5. Step 5: Solve for x
    x = 194,458,989,333.34/505,251.87
  6. Step 6: Final answer
    x = 384,875.35

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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.