Home / 1,112,441.63-1,667,672.82-402,311.79

Finding the Fourth Proportional to 1,112,441.63, 1,667,672.82 and 402,311.79

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Solution

The fourth proportional to 1,112,441.63, 1,667,672.82 and 402,311.79 is: 603,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,441.63 : 1,667,672.82 = 402,311.79 : x
  2. Step 2: Convert to fraction form
    1,112,441.63/1,667,672.82 = 402,311.79/x
  3. Step 3: Cross multiply
    1,112,441.63x = 1,667,672.82 × 402,311.79
  4. Step 4: Simplify right side
    1,112,441.63x = 670,924,437,348.55
  5. Step 5: Solve for x
    x = 670,924,437,348.55/1,112,441.63
  6. Step 6: Final answer
    x = 603,109.79

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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.