Home / 1,311,115.27-1,966,486.07-412,533.67

Finding the Fourth Proportional to 1,311,115.27, 1,966,486.07 and 412,533.67

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Solution

The fourth proportional to 1,311,115.27, 1,966,486.07 and 412,533.67 is: 618,741.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,115.27 : 1,966,486.07 = 412,533.67 : x
  2. Step 2: Convert to fraction form
    1,311,115.27/1,966,486.07 = 412,533.67/x
  3. Step 3: Cross multiply
    1,311,115.27x = 1,966,486.07 × 412,533.67
  4. Step 4: Simplify right side
    1,311,115.27x = 811,241,708,482.09
  5. Step 5: Solve for x
    x = 811,241,708,482.09/1,311,115.27
  6. Step 6: Final answer
    x = 618,741.71

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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.