Home / 1,990,103.94-2,985,139.49-570,161.39

Finding the Fourth Proportional to 1,990,103.94, 2,985,139.49 and 570,161.39

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Solution

The fourth proportional to 1,990,103.94, 2,985,139.49 and 570,161.39 is: 855,237.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,103.94 : 2,985,139.49 = 570,161.39 : x
  2. Step 2: Convert to fraction form
    1,990,103.94/2,985,139.49 = 570,161.39/x
  3. Step 3: Cross multiply
    1,990,103.94x = 2,985,139.49 × 570,161.39
  4. Step 4: Simplify right side
    1,990,103.94x = 1,702,011,263,185.79
  5. Step 5: Solve for x
    x = 1,702,011,263,185.79/1,990,103.94
  6. Step 6: Final answer
    x = 855,237.37

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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.