Home / 481,291.01-664,631.67-309,507.29

Finding the Fourth Proportional to 481,291.01, 664,631.67 and 309,507.29

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Solution

The fourth proportional to 481,291.01, 664,631.67 and 309,507.29 is: 427,409.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,291.01 : 664,631.67 = 309,507.29 : x
  2. Step 2: Convert to fraction form
    481,291.01/664,631.67 = 309,507.29/x
  3. Step 3: Cross multiply
    481,291.01x = 664,631.67 × 309,507.29
  4. Step 4: Simplify right side
    481,291.01x = 205,708,349,970.97
  5. Step 5: Solve for x
    x = 205,708,349,970.97/481,291.01
  6. Step 6: Final answer
    x = 427,409.50

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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.