Home / 481,026.21-664,020.63-299,828.40

Finding the Fourth Proportional to 481,026.21, 664,020.63 and 299,828.40

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Solution

The fourth proportional to 481,026.21, 664,020.63 and 299,828.40 is: 413,890.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,026.21 : 664,020.63 = 299,828.40 : x
  2. Step 2: Convert to fraction form
    481,026.21/664,020.63 = 299,828.40/x
  3. Step 3: Cross multiply
    481,026.21x = 664,020.63 × 299,828.40
  4. Step 4: Simplify right side
    481,026.21x = 199,092,243,059.89
  5. Step 5: Solve for x
    x = 199,092,243,059.89/481,026.21
  6. Step 6: Final answer
    x = 413,890.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.