Home / 1,296,267.80-1,944,401.70-821,413.40

Finding the Fourth Proportional to 1,296,267.80, 1,944,401.70 and 821,413.40

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Solution

The fourth proportional to 1,296,267.80, 1,944,401.70 and 821,413.40 is: 1,232,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,267.80 : 1,944,401.70 = 821,413.40 : x
  2. Step 2: Convert to fraction form
    1,296,267.80/1,944,401.70 = 821,413.40/x
  3. Step 3: Cross multiply
    1,296,267.80x = 1,944,401.70 × 821,413.40
  4. Step 4: Simplify right side
    1,296,267.80x = 1,597,157,611,362.78
  5. Step 5: Solve for x
    x = 1,597,157,611,362.78/1,296,267.80
  6. Step 6: Final answer
    x = 1,232,120.10

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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.