Home / 405,914.90-560,148.78-224,634.47

Finding the Fourth Proportional to 405,914.90, 560,148.78 and 224,634.47

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Solution

The fourth proportional to 405,914.90, 560,148.78 and 224,634.47 is: 309,987.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,914.90 : 560,148.78 = 224,634.47 : x
  2. Step 2: Convert to fraction form
    405,914.90/560,148.78 = 224,634.47/x
  3. Step 3: Cross multiply
    405,914.90x = 560,148.78 × 224,634.47
  4. Step 4: Simplify right side
    405,914.90x = 125,828,725,716.82
  5. Step 5: Solve for x
    x = 125,828,725,716.82/405,914.90
  6. Step 6: Final answer
    x = 309,987.94

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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.