Home / 780,213.96-1,170,342.81-381,173.94

Finding the Fourth Proportional to 780,213.96, 1,170,342.81 and 381,173.94

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Solution

The fourth proportional to 780,213.96, 1,170,342.81 and 381,173.94 is: 571,771.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,213.96 : 1,170,342.81 = 381,173.94 : x
  2. Step 2: Convert to fraction form
    780,213.96/1,170,342.81 = 381,173.94/x
  3. Step 3: Cross multiply
    780,213.96x = 1,170,342.81 × 381,173.94
  4. Step 4: Simplify right side
    780,213.96x = 446,104,180,038.37
  5. Step 5: Solve for x
    x = 446,104,180,038.37/780,213.96
  6. Step 6: Final answer
    x = 571,771.59

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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.