Home / 1,284,989.70-1,925,783.55-684,658.20

Finding the Fourth Proportional to 1,284,989.70, 1,925,783.55 and 684,658.20

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Solution

The fourth proportional to 1,284,989.70, 1,925,783.55 and 684,658.20 is: 1,026,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,989.70 : 1,925,783.55 = 684,658.20 : x
  2. Step 2: Convert to fraction form
    1,284,989.70/1,925,783.55 = 684,658.20/x
  3. Step 3: Cross multiply
    1,284,989.70x = 1,925,783.55 × 684,658.20
  4. Step 4: Simplify right side
    1,284,989.70x = 1,318,503,498,932.61
  5. Step 5: Solve for x
    x = 1,318,503,498,932.61/1,284,989.70
  6. Step 6: Final answer
    x = 1,026,080.99

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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.