Home / 456,958.12-685,437-119,998.12

Finding the Fourth Proportional to 456,958.12, 685,437 and 119,998.12

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Solution

The fourth proportional to 456,958.12, 685,437 and 119,998.12 is: 179,997.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,958.12 : 685,437 = 119,998.12 : x
  2. Step 2: Convert to fraction form
    456,958.12/685,437 = 119,998.12/x
  3. Step 3: Cross multiply
    456,958.12x = 685,437 × 119,998.12
  4. Step 4: Simplify right side
    456,958.12x = 82,251,151,378.44
  5. Step 5: Solve for x
    x = 82,251,151,378.44/456,958.12
  6. Step 6: Final answer
    x = 179,997.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.