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Finding the Fourth Proportional to 656,885.48, 985,243.32 and 207,651.67

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Solution

The fourth proportional to 656,885.48, 985,243.32 and 207,651.67 is: 311,450.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,885.48 : 985,243.32 = 207,651.67 : x
  2. Step 2: Convert to fraction form
    656,885.48/985,243.32 = 207,651.67/x
  3. Step 3: Cross multiply
    656,885.48x = 985,243.32 × 207,651.67
  4. Step 4: Simplify right side
    656,885.48x = 204,587,418,291.24
  5. Step 5: Solve for x
    x = 204,587,418,291.24/656,885.48
  6. Step 6: Final answer
    x = 311,450.67

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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.