Home / 1,806,205.78-2,709,296.37-439,963.21

Finding the Fourth Proportional to 1,806,205.78, 2,709,296.37 and 439,963.21

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Solution

The fourth proportional to 1,806,205.78, 2,709,296.37 and 439,963.21 is: 659,941.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806,205.78 : 2,709,296.37 = 439,963.21 : x
  2. Step 2: Convert to fraction form
    1,806,205.78/2,709,296.37 = 439,963.21/x
  3. Step 3: Cross multiply
    1,806,205.78x = 2,709,296.37 × 439,963.21
  4. Step 4: Simplify right side
    1,806,205.78x = 1,191,990,727,786.55
  5. Step 5: Solve for x
    x = 1,191,990,727,786.55/1,806,205.78
  6. Step 6: Final answer
    x = 659,941.82

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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.