Home / 405,888.12-559,880.70-268,067.88

Finding the Fourth Proportional to 405,888.12, 559,880.70 and 268,067.88

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Solution

The fourth proportional to 405,888.12, 559,880.70 and 268,067.88 is: 369,771.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,888.12 : 559,880.70 = 268,067.88 : x
  2. Step 2: Convert to fraction form
    405,888.12/559,880.70 = 268,067.88/x
  3. Step 3: Cross multiply
    405,888.12x = 559,880.70 × 268,067.88
  4. Step 4: Simplify right side
    405,888.12x = 150,086,032,301.92
  5. Step 5: Solve for x
    x = 150,086,032,301.92/405,888.12
  6. Step 6: Final answer
    x = 369,771.93

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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.