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Finding the Fourth Proportional to 682,989.57, 942,525.86 and 377,066.21

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Solution

The fourth proportional to 682,989.57, 942,525.86 and 377,066.21 is: 520,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,989.57 : 942,525.86 = 377,066.21 : x
  2. Step 2: Convert to fraction form
    682,989.57/942,525.86 = 377,066.21/x
  3. Step 3: Cross multiply
    682,989.57x = 942,525.86 × 377,066.21
  4. Step 4: Simplify right side
    682,989.57x = 355,394,647,259.23
  5. Step 5: Solve for x
    x = 355,394,647,259.23/682,989.57
  6. Step 6: Final answer
    x = 520,351.50

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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.