Home / 667,636.43-1,001,443.10-212,225.67

Finding the Fourth Proportional to 667,636.43, 1,001,443.10 and 212,225.67

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Solution

The fourth proportional to 667,636.43, 1,001,443.10 and 212,225.67 is: 318,334.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,636.43 : 1,001,443.10 = 212,225.67 : x
  2. Step 2: Convert to fraction form
    667,636.43/1,001,443.10 = 212,225.67/x
  3. Step 3: Cross multiply
    667,636.43x = 1,001,443.10 × 212,225.67
  4. Step 4: Simplify right side
    667,636.43x = 212,531,931,803.25
  5. Step 5: Solve for x
    x = 212,531,931,803.25/667,636.43
  6. Step 6: Final answer
    x = 318,334.84

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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.