Home / 394,929.88-545,001.59-213,641.36

Finding the Fourth Proportional to 394,929.88, 545,001.59 and 213,641.36

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Solution

The fourth proportional to 394,929.88, 545,001.59 and 213,641.36 is: 294,824.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,929.88 : 545,001.59 = 213,641.36 : x
  2. Step 2: Convert to fraction form
    394,929.88/545,001.59 = 213,641.36/x
  3. Step 3: Cross multiply
    394,929.88x = 545,001.59 × 213,641.36
  4. Step 4: Simplify right side
    394,929.88x = 116,434,880,889.76
  5. Step 5: Solve for x
    x = 116,434,880,889.76/394,929.88
  6. Step 6: Final answer
    x = 294,824.19

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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.