Home / 428,334.96-591,089.34-234,740.30

Finding the Fourth Proportional to 428,334.96, 591,089.34 and 234,740.30

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Solution

The fourth proportional to 428,334.96, 591,089.34 and 234,740.30 is: 323,934.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,334.96 : 591,089.34 = 234,740.30 : x
  2. Step 2: Convert to fraction form
    428,334.96/591,089.34 = 234,740.30/x
  3. Step 3: Cross multiply
    428,334.96x = 591,089.34 × 234,740.30
  4. Step 4: Simplify right side
    428,334.96x = 138,752,488,998.40
  5. Step 5: Solve for x
    x = 138,752,488,998.40/428,334.96
  6. Step 6: Final answer
    x = 323,934.54

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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.