Home / 1,425,338.70-2,138,216.54-414,329.30

Finding the Fourth Proportional to 1,425,338.70, 2,138,216.54 and 414,329.30

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Solution

The fourth proportional to 1,425,338.70, 2,138,216.54 and 414,329.30 is: 621,554.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,338.70 : 2,138,216.54 = 414,329.30 : x
  2. Step 2: Convert to fraction form
    1,425,338.70/2,138,216.54 = 414,329.30/x
  3. Step 3: Cross multiply
    1,425,338.70x = 2,138,216.54 × 414,329.30
  4. Step 4: Simplify right side
    1,425,338.70x = 885,925,763,535.94
  5. Step 5: Solve for x
    x = 885,925,763,535.94/1,425,338.70
  6. Step 6: Final answer
    x = 621,554.56

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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.