Home / 428,284.76-591,008.28-237,286.76

Finding the Fourth Proportional to 428,284.76, 591,008.28 and 237,286.76

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Solution

The fourth proportional to 428,284.76, 591,008.28 and 237,286.76 is: 327,442.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,284.76 : 591,008.28 = 237,286.76 : x
  2. Step 2: Convert to fraction form
    428,284.76/591,008.28 = 237,286.76/x
  3. Step 3: Cross multiply
    428,284.76x = 591,008.28 × 237,286.76
  4. Step 4: Simplify right side
    428,284.76x = 140,238,439,894.37
  5. Step 5: Solve for x
    x = 140,238,439,894.37/428,284.76
  6. Step 6: Final answer
    x = 327,442.05

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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.