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Finding the Fourth Proportional to 620,520.53, 929,919.65 and 282,735.68

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Solution

The fourth proportional to 620,520.53, 929,919.65 and 282,735.68 is: 423,711.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,520.53 : 929,919.65 = 282,735.68 : x
  2. Step 2: Convert to fraction form
    620,520.53/929,919.65 = 282,735.68/x
  3. Step 3: Cross multiply
    620,520.53x = 929,919.65 × 282,735.68
  4. Step 4: Simplify right side
    620,520.53x = 262,921,458,524.84
  5. Step 5: Solve for x
    x = 262,921,458,524.84/620,520.53
  6. Step 6: Final answer
    x = 423,711.14

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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.