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Finding the Fourth Proportional to 630,930, 945,928.44 and 381,556.56

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Solution

The fourth proportional to 630,930, 945,928.44 and 381,556.56 is: 572,052.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,930 : 945,928.44 = 381,556.56 : x
  2. Step 2: Convert to fraction form
    630,930/945,928.44 = 381,556.56/x
  3. Step 3: Cross multiply
    630,930x = 945,928.44 × 381,556.56
  4. Step 4: Simplify right side
    630,930x = 360,925,201,572.57
  5. Step 5: Solve for x
    x = 360,925,201,572.57/630,930
  6. Step 6: Final answer
    x = 572,052.69

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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.