Home / 1,340,042.20-2,009,868.90-393,314.20

Finding the Fourth Proportional to 1,340,042.20, 2,009,868.90 and 393,314.20

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Solution

The fourth proportional to 1,340,042.20, 2,009,868.90 and 393,314.20 is: 589,914.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,042.20 : 2,009,868.90 = 393,314.20 : x
  2. Step 2: Convert to fraction form
    1,340,042.20/2,009,868.90 = 393,314.20/x
  3. Step 3: Cross multiply
    1,340,042.20x = 2,009,868.90 × 393,314.20
  4. Step 4: Simplify right side
    1,340,042.20x = 790,509,978,508.38
  5. Step 5: Solve for x
    x = 790,509,978,508.38/1,340,042.20
  6. Step 6: Final answer
    x = 589,914.24

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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.