Home / 667,647.34-1,001,555.89-212,076.05

Finding the Fourth Proportional to 667,647.34, 1,001,555.89 and 212,076.05

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Solution

The fourth proportional to 667,647.34, 1,001,555.89 and 212,076.05 is: 318,141.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,647.34 : 1,001,555.89 = 212,076.05 : x
  2. Step 2: Convert to fraction form
    667,647.34/1,001,555.89 = 212,076.05/x
  3. Step 3: Cross multiply
    667,647.34x = 1,001,555.89 × 212,076.05
  4. Step 4: Simplify right side
    667,647.34x = 212,406,017,005.43
  5. Step 5: Solve for x
    x = 212,406,017,005.43/667,647.34
  6. Step 6: Final answer
    x = 318,141.04

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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.