Home / 1,429,825.54-2,145,032.74-418,980.36

Finding the Fourth Proportional to 1,429,825.54, 2,145,032.74 and 418,980.36

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Solution

The fourth proportional to 1,429,825.54, 2,145,032.74 and 418,980.36 is: 628,556.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,825.54 : 2,145,032.74 = 418,980.36 : x
  2. Step 2: Convert to fraction form
    1,429,825.54/2,145,032.74 = 418,980.36/x
  3. Step 3: Cross multiply
    1,429,825.54x = 2,145,032.74 × 418,980.36
  4. Step 4: Simplify right side
    1,429,825.54x = 898,726,589,616.99
  5. Step 5: Solve for x
    x = 898,726,589,616.99/1,429,825.54
  6. Step 6: Final answer
    x = 628,556.82

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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.