Home / 1,228,311.82-1,842,533.73-386,929.42

Finding the Fourth Proportional to 1,228,311.82, 1,842,533.73 and 386,929.42

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Solution

The fourth proportional to 1,228,311.82, 1,842,533.73 and 386,929.42 is: 580,414.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,311.82 : 1,842,533.73 = 386,929.42 : x
  2. Step 2: Convert to fraction form
    1,228,311.82/1,842,533.73 = 386,929.42/x
  3. Step 3: Cross multiply
    1,228,311.82x = 1,842,533.73 × 386,929.42
  4. Step 4: Simplify right side
    1,228,311.82x = 712,930,507,479.34
  5. Step 5: Solve for x
    x = 712,930,507,479.34/1,228,311.82
  6. Step 6: Final answer
    x = 580,414.92

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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.