Home / 1,388,679.60-2,083,134.60-442,023.60

Finding the Fourth Proportional to 1,388,679.60, 2,083,134.60 and 442,023.60

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Solution

The fourth proportional to 1,388,679.60, 2,083,134.60 and 442,023.60 is: 663,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,679.60 : 2,083,134.60 = 442,023.60 : x
  2. Step 2: Convert to fraction form
    1,388,679.60/2,083,134.60 = 442,023.60/x
  3. Step 3: Cross multiply
    1,388,679.60x = 2,083,134.60 × 442,023.60
  4. Step 4: Simplify right side
    1,388,679.60x = 920,794,655,176.56
  5. Step 5: Solve for x
    x = 920,794,655,176.56/1,388,679.60
  6. Step 6: Final answer
    x = 663,072.07

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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.