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Finding the Fourth Proportional to 525,212.76, 723,782.34 and 381,745.56

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Solution

The fourth proportional to 525,212.76, 723,782.34 and 381,745.56 is: 526,073.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,212.76 : 723,782.34 = 381,745.56 : x
  2. Step 2: Convert to fraction form
    525,212.76/723,782.34 = 381,745.56/x
  3. Step 3: Cross multiply
    525,212.76x = 723,782.34 × 381,745.56
  4. Step 4: Simplify right side
    525,212.76x = 276,300,694,701.41
  5. Step 5: Solve for x
    x = 276,300,694,701.41/525,212.76
  6. Step 6: Final answer
    x = 526,073.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.