Home / 1,340,057.31-2,010,162.57-380,437.86

Finding the Fourth Proportional to 1,340,057.31, 2,010,162.57 and 380,437.86

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Solution

The fourth proportional to 1,340,057.31, 2,010,162.57 and 380,437.86 is: 570,678.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,057.31 : 2,010,162.57 = 380,437.86 : x
  2. Step 2: Convert to fraction form
    1,340,057.31/2,010,162.57 = 380,437.86/x
  3. Step 3: Cross multiply
    1,340,057.31x = 2,010,162.57 × 380,437.86
  4. Step 4: Simplify right side
    1,340,057.31x = 764,741,946,382.90
  5. Step 5: Solve for x
    x = 764,741,946,382.90/1,340,057.31
  6. Step 6: Final answer
    x = 570,678.54

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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.