Home / 1,339,839.82-2,009,602.86-380,379.70

Finding the Fourth Proportional to 1,339,839.82, 2,009,602.86 and 380,379.70

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Solution

The fourth proportional to 1,339,839.82, 2,009,602.86 and 380,379.70 is: 570,525.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,839.82 : 2,009,602.86 = 380,379.70 : x
  2. Step 2: Convert to fraction form
    1,339,839.82/2,009,602.86 = 380,379.70/x
  3. Step 3: Cross multiply
    1,339,839.82x = 2,009,602.86 × 380,379.70
  4. Step 4: Simplify right side
    1,339,839.82x = 764,412,133,005.94
  5. Step 5: Solve for x
    x = 764,412,133,005.94/1,339,839.82
  6. Step 6: Final answer
    x = 570,525.01

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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.