Home / 428,873.42-591,848.19-237,890.06

Finding the Fourth Proportional to 428,873.42, 591,848.19 and 237,890.06

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Solution

The fourth proportional to 428,873.42, 591,848.19 and 237,890.06 is: 328,289.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,873.42 : 591,848.19 = 237,890.06 : x
  2. Step 2: Convert to fraction form
    428,873.42/591,848.19 = 237,890.06/x
  3. Step 3: Cross multiply
    428,873.42x = 591,848.19 × 237,890.06
  4. Step 4: Simplify right side
    428,873.42x = 140,794,801,429.99
  5. Step 5: Solve for x
    x = 140,794,801,429.99/428,873.42
  6. Step 6: Final answer
    x = 328,289.87

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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.