Home / 505,137.24-697,067.64-275,688.72

Finding the Fourth Proportional to 505,137.24, 697,067.64 and 275,688.72

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Solution

The fourth proportional to 505,137.24, 697,067.64 and 275,688.72 is: 380,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,137.24 : 697,067.64 = 275,688.72 : x
  2. Step 2: Convert to fraction form
    505,137.24/697,067.64 = 275,688.72/x
  3. Step 3: Cross multiply
    505,137.24x = 697,067.64 × 275,688.72
  4. Step 4: Simplify right side
    505,137.24x = 192,173,685,425.02
  5. Step 5: Solve for x
    x = 192,173,685,425.02/505,137.24
  6. Step 6: Final answer
    x = 380,438.56

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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.