Home / 669,428.96-1,004,207.22-220,153.55

Finding the Fourth Proportional to 669,428.96, 1,004,207.22 and 220,153.55

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Solution

The fourth proportional to 669,428.96, 1,004,207.22 and 220,153.55 is: 330,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,428.96 : 1,004,207.22 = 220,153.55 : x
  2. Step 2: Convert to fraction form
    669,428.96/1,004,207.22 = 220,153.55/x
  3. Step 3: Cross multiply
    669,428.96x = 1,004,207.22 × 220,153.55
  4. Step 4: Simplify right side
    669,428.96x = 221,079,779,397.60
  5. Step 5: Solve for x
    x = 221,079,779,397.60/669,428.96
  6. Step 6: Final answer
    x = 330,251.30

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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.