Home / 757,410.12-1,135,479.07-330,621.22

Finding the Fourth Proportional to 757,410.12, 1,135,479.07 and 330,621.22

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Solution

The fourth proportional to 757,410.12, 1,135,479.07 and 330,621.22 is: 495,654.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,410.12 : 1,135,479.07 = 330,621.22 : x
  2. Step 2: Convert to fraction form
    757,410.12/1,135,479.07 = 330,621.22/x
  3. Step 3: Cross multiply
    757,410.12x = 1,135,479.07 × 330,621.22
  4. Step 4: Simplify right side
    757,410.12x = 375,413,471,742.62
  5. Step 5: Solve for x
    x = 375,413,471,742.62/757,410.12
  6. Step 6: Final answer
    x = 495,654.15

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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.