Home / 428,739.64-591,694.14-237,790.36

Finding the Fourth Proportional to 428,739.64, 591,694.14 and 237,790.36

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Solution

The fourth proportional to 428,739.64, 591,694.14 and 237,790.36 is: 328,169.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,739.64 : 591,694.14 = 237,790.36 : x
  2. Step 2: Convert to fraction form
    428,739.64/591,694.14 = 237,790.36/x
  3. Step 3: Cross multiply
    428,739.64x = 591,694.14 × 237,790.36
  4. Step 4: Simplify right side
    428,739.64x = 140,699,162,560.49
  5. Step 5: Solve for x
    x = 140,699,162,560.49/428,739.64
  6. Step 6: Final answer
    x = 328,169.24

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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.