Home / 427,450.56-641,323.20-190,956.48

Finding the Fourth Proportional to 427,450.56, 641,323.20 and 190,956.48

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Solution

The fourth proportional to 427,450.56, 641,323.20 and 190,956.48 is: 286,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,450.56 : 641,323.20 = 190,956.48 : x
  2. Step 2: Convert to fraction form
    427,450.56/641,323.20 = 190,956.48/x
  3. Step 3: Cross multiply
    427,450.56x = 641,323.20 × 190,956.48
  4. Step 4: Simplify right side
    427,450.56x = 122,464,820,814.34
  5. Step 5: Solve for x
    x = 122,464,820,814.34/427,450.56
  6. Step 6: Final answer
    x = 286,500.55

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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.