Home / 1,245,912.88-1,869,354.20-498,172.72

Finding the Fourth Proportional to 1,245,912.88, 1,869,354.20 and 498,172.72

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Solution

The fourth proportional to 1,245,912.88, 1,869,354.20 and 498,172.72 is: 747,452.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,912.88 : 1,869,354.20 = 498,172.72 : x
  2. Step 2: Convert to fraction form
    1,245,912.88/1,869,354.20 = 498,172.72/x
  3. Step 3: Cross multiply
    1,245,912.88x = 1,869,354.20 × 498,172.72
  4. Step 4: Simplify right side
    1,245,912.88x = 931,261,266,457.42
  5. Step 5: Solve for x
    x = 931,261,266,457.42/1,245,912.88
  6. Step 6: Final answer
    x = 747,452.96

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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.