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Finding the Fourth Proportional to 419,735.36, 579,235.32 and 228,748.96

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Solution

The fourth proportional to 419,735.36, 579,235.32 and 228,748.96 is: 315,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,735.36 : 579,235.32 = 228,748.96 : x
  2. Step 2: Convert to fraction form
    419,735.36/579,235.32 = 228,748.96/x
  3. Step 3: Cross multiply
    419,735.36x = 579,235.32 × 228,748.96
  4. Step 4: Simplify right side
    419,735.36x = 132,499,477,045.27
  5. Step 5: Solve for x
    x = 132,499,477,045.27/419,735.36
  6. Step 6: Final answer
    x = 315,673.85

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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.