Home / 757,011.72-1,135,517.62-307,976.76

Finding the Fourth Proportional to 757,011.72, 1,135,517.62 and 307,976.76

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Solution

The fourth proportional to 757,011.72, 1,135,517.62 and 307,976.76 is: 461,965.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,011.72 : 1,135,517.62 = 307,976.76 : x
  2. Step 2: Convert to fraction form
    757,011.72/1,135,517.62 = 307,976.76/x
  3. Step 3: Cross multiply
    757,011.72x = 1,135,517.62 × 307,976.76
  4. Step 4: Simplify right side
    757,011.72x = 349,713,037,530.51
  5. Step 5: Solve for x
    x = 349,713,037,530.51/757,011.72
  6. Step 6: Final answer
    x = 461,965.16

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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.