Home / 398,769.94-550,283.11-237,621.39

Finding the Fourth Proportional to 398,769.94, 550,283.11 and 237,621.39

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Solution

The fourth proportional to 398,769.94, 550,283.11 and 237,621.39 is: 327,905.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,769.94 : 550,283.11 = 237,621.39 : x
  2. Step 2: Convert to fraction form
    398,769.94/550,283.11 = 237,621.39/x
  3. Step 3: Cross multiply
    398,769.94x = 550,283.11 × 237,621.39
  4. Step 4: Simplify right side
    398,769.94x = 130,759,037,491.72
  5. Step 5: Solve for x
    x = 130,759,037,491.72/398,769.94
  6. Step 6: Final answer
    x = 327,905.95

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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.