Home / 668,283.72-1,002,093.93-212,815.61

Finding the Fourth Proportional to 668,283.72, 1,002,093.93 and 212,815.61

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Solution

The fourth proportional to 668,283.72, 1,002,093.93 and 212,815.61 is: 319,117.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,283.72 : 1,002,093.93 = 212,815.61 : x
  2. Step 2: Convert to fraction form
    668,283.72/1,002,093.93 = 212,815.61/x
  3. Step 3: Cross multiply
    668,283.72x = 1,002,093.93 × 212,815.61
  4. Step 4: Simplify right side
    668,283.72x = 213,261,225,979.78
  5. Step 5: Solve for x
    x = 213,261,225,979.78/668,283.72
  6. Step 6: Final answer
    x = 319,117.79

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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.