Home / 397,715.12-596,486.28-131,412.56

Finding the Fourth Proportional to 397,715.12, 596,486.28 and 131,412.56

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Solution

The fourth proportional to 397,715.12, 596,486.28 and 131,412.56 is: 197,090.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,715.12 : 596,486.28 = 131,412.56 : x
  2. Step 2: Convert to fraction form
    397,715.12/596,486.28 = 131,412.56/x
  3. Step 3: Cross multiply
    397,715.12x = 596,486.28 × 131,412.56
  4. Step 4: Simplify right side
    397,715.12x = 78,385,789,059.68
  5. Step 5: Solve for x
    x = 78,385,789,059.68/397,715.12
  6. Step 6: Final answer
    x = 197,090.29

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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.