Home / 1,260,942.20-1,891,413.30-788,161.40

Finding the Fourth Proportional to 1,260,942.20, 1,891,413.30 and 788,161.40

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Solution

The fourth proportional to 1,260,942.20, 1,891,413.30 and 788,161.40 is: 1,182,242.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,942.20 : 1,891,413.30 = 788,161.40 : x
  2. Step 2: Convert to fraction form
    1,260,942.20/1,891,413.30 = 788,161.40/x
  3. Step 3: Cross multiply
    1,260,942.20x = 1,891,413.30 × 788,161.40
  4. Step 4: Simplify right side
    1,260,942.20x = 1,490,738,954,506.62
  5. Step 5: Solve for x
    x = 1,490,738,954,506.62/1,260,942.20
  6. Step 6: Final answer
    x = 1,182,242.10

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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.