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Finding the Fourth Proportional to 620,027.28, 929,804.85 and 367,379.07

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Solution

The fourth proportional to 620,027.28, 929,804.85 and 367,379.07 is: 550,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,027.28 : 929,804.85 = 367,379.07 : x
  2. Step 2: Convert to fraction form
    620,027.28/929,804.85 = 367,379.07/x
  3. Step 3: Cross multiply
    620,027.28x = 929,804.85 × 367,379.07
  4. Step 4: Simplify right side
    620,027.28x = 341,590,841,074.49
  5. Step 5: Solve for x
    x = 341,590,841,074.49/620,027.28
  6. Step 6: Final answer
    x = 550,928.73

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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.