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Finding the Fourth Proportional to 484,725.12, 668,919.24 and 269,859.66

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Solution

The fourth proportional to 484,725.12, 668,919.24 and 269,859.66 is: 372,405.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,725.12 : 668,919.24 = 269,859.66 : x
  2. Step 2: Convert to fraction form
    484,725.12/668,919.24 = 269,859.66/x
  3. Step 3: Cross multiply
    484,725.12x = 668,919.24 × 269,859.66
  4. Step 4: Simplify right side
    484,725.12x = 180,514,318,673.86
  5. Step 5: Solve for x
    x = 180,514,318,673.86/484,725.12
  6. Step 6: Final answer
    x = 372,405.54

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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.