Home / 428,738.64-591,692.76-237,789.36

Finding the Fourth Proportional to 428,738.64, 591,692.76 and 237,789.36

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Solution

The fourth proportional to 428,738.64, 591,692.76 and 237,789.36 is: 328,167.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,738.64 : 591,692.76 = 237,789.36 : x
  2. Step 2: Convert to fraction form
    428,738.64/591,692.76 = 237,789.36/x
  3. Step 3: Cross multiply
    428,738.64x = 591,692.76 × 237,789.36
  4. Step 4: Simplify right side
    428,738.64x = 140,698,242,717.03
  5. Step 5: Solve for x
    x = 140,698,242,717.03/428,738.64
  6. Step 6: Final answer
    x = 328,167.86

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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.