Home / 1,790,909.80-2,688,438.30-1,081,738.60

Finding the Fourth Proportional to 1,790,909.80, 2,688,438.30 and 1,081,738.60

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Solution

The fourth proportional to 1,790,909.80, 2,688,438.30 and 1,081,738.60 is: 1,623,860.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790,909.80 : 2,688,438.30 = 1,081,738.60 : x
  2. Step 2: Convert to fraction form
    1,790,909.80/2,688,438.30 = 1,081,738.60/x
  3. Step 3: Cross multiply
    1,790,909.80x = 2,688,438.30 × 1,081,738.60
  4. Step 4: Simplify right side
    1,790,909.80x = 2,908,187,482,828.38
  5. Step 5: Solve for x
    x = 2,908,187,482,828.38/1,790,909.80
  6. Step 6: Final answer
    x = 1,623,860.39

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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.