Home / 876,912.20-1,315,368.30-212,064.20

Finding the Fourth Proportional to 876,912.20, 1,315,368.30 and 212,064.20

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Solution

The fourth proportional to 876,912.20, 1,315,368.30 and 212,064.20 is: 318,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,912.20 : 1,315,368.30 = 212,064.20 : x
  2. Step 2: Convert to fraction form
    876,912.20/1,315,368.30 = 212,064.20/x
  3. Step 3: Cross multiply
    876,912.20x = 1,315,368.30 × 212,064.20
  4. Step 4: Simplify right side
    876,912.20x = 278,942,526,244.86
  5. Step 5: Solve for x
    x = 278,942,526,244.86/876,912.20
  6. Step 6: Final answer
    x = 318,096.30

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1.5x scale

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.