Home / 421,935.45-632,771.04-122,436.72

Finding the Fourth Proportional to 421,935.45, 632,771.04 and 122,436.72

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Solution

The fourth proportional to 421,935.45, 632,771.04 and 122,436.72 is: 183,616.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,935.45 : 632,771.04 = 122,436.72 : x
  2. Step 2: Convert to fraction form
    421,935.45/632,771.04 = 122,436.72/x
  3. Step 3: Cross multiply
    421,935.45x = 632,771.04 × 122,436.72
  4. Step 4: Simplify right side
    421,935.45x = 77,474,410,648.59
  5. Step 5: Solve for x
    x = 77,474,410,648.59/421,935.45
  6. Step 6: Final answer
    x = 183,616.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.