Home / 428,749.20-591,675.48-237,780.24

Finding the Fourth Proportional to 428,749.20, 591,675.48 and 237,780.24

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Solution

The fourth proportional to 428,749.20, 591,675.48 and 237,780.24 is: 328,137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,749.20 : 591,675.48 = 237,780.24 : x
  2. Step 2: Convert to fraction form
    428,749.20/591,675.48 = 237,780.24/x
  3. Step 3: Cross multiply
    428,749.20x = 591,675.48 × 237,780.24
  4. Step 4: Simplify right side
    428,749.20x = 140,688,737,636.52
  5. Step 5: Solve for x
    x = 140,688,737,636.52/428,749.20
  6. Step 6: Final answer
    x = 328,137.61

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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.