Home / 419,943.24-629,826.30-153,828.36

Finding the Fourth Proportional to 419,943.24, 629,826.30 and 153,828.36

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Solution

The fourth proportional to 419,943.24, 629,826.30 and 153,828.36 is: 230,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,943.24 : 629,826.30 = 153,828.36 : x
  2. Step 2: Convert to fraction form
    419,943.24/629,826.30 = 153,828.36/x
  3. Step 3: Cross multiply
    419,943.24x = 629,826.30 × 153,828.36
  4. Step 4: Simplify right side
    419,943.24x = 96,885,146,813.87
  5. Step 5: Solve for x
    x = 96,885,146,813.87/419,943.24
  6. Step 6: Final answer
    x = 230,710.10

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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.