Home / 1,449,000.30-2,173,500.45-917,121.90

Finding the Fourth Proportional to 1,449,000.30, 2,173,500.45 and 917,121.90

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Solution

The fourth proportional to 1,449,000.30, 2,173,500.45 and 917,121.90 is: 1,375,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,000.30 : 2,173,500.45 = 917,121.90 : x
  2. Step 2: Convert to fraction form
    1,449,000.30/2,173,500.45 = 917,121.90/x
  3. Step 3: Cross multiply
    1,449,000.30x = 2,173,500.45 × 917,121.90
  4. Step 4: Simplify right side
    1,449,000.30x = 1,993,364,862,354.86
  5. Step 5: Solve for x
    x = 1,993,364,862,354.86/1,449,000.30
  6. Step 6: Final answer
    x = 1,375,682.85

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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.