Home / 1,282,209.94-1,921,616.07-681,878.50

Finding the Fourth Proportional to 1,282,209.94, 1,921,616.07 and 681,878.50

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Solution

The fourth proportional to 1,282,209.94, 1,921,616.07 and 681,878.50 is: 1,021,914.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,209.94 : 1,921,616.07 = 681,878.50 : x
  2. Step 2: Convert to fraction form
    1,282,209.94/1,921,616.07 = 681,878.50/x
  3. Step 3: Cross multiply
    1,282,209.94x = 1,921,616.07 × 681,878.50
  4. Step 4: Simplify right side
    1,282,209.94x = 1,310,308,683,387.50
  5. Step 5: Solve for x
    x = 1,310,308,683,387.50/1,282,209.94
  6. Step 6: Final answer
    x = 1,021,914.31

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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.