Home / 481,001.40-664,174.26-309,004.74

Finding the Fourth Proportional to 481,001.40, 664,174.26 and 309,004.74

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Solution

The fourth proportional to 481,001.40, 664,174.26 and 309,004.74 is: 426,678.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,001.40 : 664,174.26 = 309,004.74 : x
  2. Step 2: Convert to fraction form
    481,001.40/664,174.26 = 309,004.74/x
  3. Step 3: Cross multiply
    481,001.40x = 664,174.26 × 309,004.74
  4. Step 4: Simplify right side
    481,001.40x = 205,232,994,525.99
  5. Step 5: Solve for x
    x = 205,232,994,525.99/481,001.40
  6. Step 6: Final answer
    x = 426,678.58

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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.