Home / 677,138.24-1,015,412.06-256,118.87

Finding the Fourth Proportional to 677,138.24, 1,015,412.06 and 256,118.87

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Solution

The fourth proportional to 677,138.24, 1,015,412.06 and 256,118.87 is: 384,066.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,138.24 : 1,015,412.06 = 256,118.87 : x
  2. Step 2: Convert to fraction form
    677,138.24/1,015,412.06 = 256,118.87/x
  3. Step 3: Cross multiply
    677,138.24x = 1,015,412.06 × 256,118.87
  4. Step 4: Simplify right side
    677,138.24x = 260,066,183,033.92
  5. Step 5: Solve for x
    x = 260,066,183,033.92/677,138.24
  6. Step 6: Final answer
    x = 384,066.61

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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.