Home / 412,921.53-619,269.98-113,331.15

Finding the Fourth Proportional to 412,921.53, 619,269.98 and 113,331.15

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Solution

The fourth proportional to 412,921.53, 619,269.98 and 113,331.15 is: 169,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,921.53 : 619,269.98 = 113,331.15 : x
  2. Step 2: Convert to fraction form
    412,921.53/619,269.98 = 113,331.15/x
  3. Step 3: Cross multiply
    412,921.53x = 619,269.98 × 113,331.15
  4. Step 4: Simplify right side
    412,921.53x = 70,182,578,427.22
  5. Step 5: Solve for x
    x = 70,182,578,427.22/412,921.53
  6. Step 6: Final answer
    x = 169,965.90

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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.