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Finding the Fourth Proportional to 437,364.34, 603,765.41 and 308,407.88

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Solution

The fourth proportional to 437,364.34, 603,765.41 and 308,407.88 is: 425,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,364.34 : 603,765.41 = 308,407.88 : x
  2. Step 2: Convert to fraction form
    437,364.34/603,765.41 = 308,407.88/x
  3. Step 3: Cross multiply
    437,364.34x = 603,765.41 × 308,407.88
  4. Step 4: Simplify right side
    437,364.34x = 186,206,010,082.81
  5. Step 5: Solve for x
    x = 186,206,010,082.81/437,364.34
  6. Step 6: Final answer
    x = 425,745.76

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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.