Home / 428,404.32-591,183.09-237,435.48

Finding the Fourth Proportional to 428,404.32, 591,183.09 and 237,435.48

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Solution

The fourth proportional to 428,404.32, 591,183.09 and 237,435.48 is: 327,652.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,404.32 : 591,183.09 = 237,435.48 : x
  2. Step 2: Convert to fraction form
    428,404.32/591,183.09 = 237,435.48/x
  3. Step 3: Cross multiply
    428,404.32x = 591,183.09 × 237,435.48
  4. Step 4: Simplify right side
    428,404.32x = 140,367,840,742.03
  5. Step 5: Solve for x
    x = 140,367,840,742.03/428,404.32
  6. Step 6: Final answer
    x = 327,652.72

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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.