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Finding the Fourth Proportional to 620,028.28, 929,806.35 and 367,380.07

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Solution

The fourth proportional to 620,028.28, 929,806.35 and 367,380.07 is: 550,930.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,028.28 : 929,806.35 = 367,380.07 : x
  2. Step 2: Convert to fraction form
    620,028.28/929,806.35 = 367,380.07/x
  3. Step 3: Cross multiply
    620,028.28x = 929,806.35 × 367,380.07
  4. Step 4: Simplify right side
    620,028.28x = 341,592,321,949.45
  5. Step 5: Solve for x
    x = 341,592,321,949.45/620,028.28
  6. Step 6: Final answer
    x = 550,930.23

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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.