Home / 821,835.58-1,233,325.63-289,399.49

Finding the Fourth Proportional to 821,835.58, 1,233,325.63 and 289,399.49

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Solution

The fourth proportional to 821,835.58, 1,233,325.63 and 289,399.49 is: 434,300.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,835.58 : 1,233,325.63 = 289,399.49 : x
  2. Step 2: Convert to fraction form
    821,835.58/1,233,325.63 = 289,399.49/x
  3. Step 3: Cross multiply
    821,835.58x = 1,233,325.63 × 289,399.49
  4. Step 4: Simplify right side
    821,835.58x = 356,923,811,770.99
  5. Step 5: Solve for x
    x = 356,923,811,770.99/821,835.58
  6. Step 6: Final answer
    x = 434,300.75

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1.5x scale

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.