Home / 684,737.70-1,027,106.55-419,017.20

Finding the Fourth Proportional to 684,737.70, 1,027,106.55 and 419,017.20

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Solution

The fourth proportional to 684,737.70, 1,027,106.55 and 419,017.20 is: 628,525.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,737.70 : 1,027,106.55 = 419,017.20 : x
  2. Step 2: Convert to fraction form
    684,737.70/1,027,106.55 = 419,017.20/x
  3. Step 3: Cross multiply
    684,737.70x = 1,027,106.55 × 419,017.20
  4. Step 4: Simplify right side
    684,737.70x = 430,375,310,682.66
  5. Step 5: Solve for x
    x = 430,375,310,682.66/684,737.70
  6. Step 6: Final answer
    x = 628,525.80

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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.