Home / 398,981.30-550,474.26-262,966.37

Finding the Fourth Proportional to 398,981.30, 550,474.26 and 262,966.37

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Solution

The fourth proportional to 398,981.30, 550,474.26 and 262,966.37 is: 362,814.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,981.30 : 550,474.26 = 262,966.37 : x
  2. Step 2: Convert to fraction form
    398,981.30/550,474.26 = 262,966.37/x
  3. Step 3: Cross multiply
    398,981.30x = 550,474.26 × 262,966.37
  4. Step 4: Simplify right side
    398,981.30x = 144,756,217,930.64
  5. Step 5: Solve for x
    x = 144,756,217,930.64/398,981.30
  6. Step 6: Final answer
    x = 362,814.54

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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.