Home / 1,230,709.69-1,846,281.21-420,903.73

Finding the Fourth Proportional to 1,230,709.69, 1,846,281.21 and 420,903.73

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Solution

The fourth proportional to 1,230,709.69, 1,846,281.21 and 420,903.73 is: 631,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,709.69 : 1,846,281.21 = 420,903.73 : x
  2. Step 2: Convert to fraction form
    1,230,709.69/1,846,281.21 = 420,903.73/x
  3. Step 3: Cross multiply
    1,230,709.69x = 1,846,281.21 × 420,903.73
  4. Step 4: Simplify right side
    1,230,709.69x = 777,106,647,917.91
  5. Step 5: Solve for x
    x = 777,106,647,917.91/1,230,709.69
  6. Step 6: Final answer
    x = 631,429.70

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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.