Home / 3,918,413.84-5,879,890.76-1,643,737

Finding the Fourth Proportional to 3,918,413.84, 5,879,890.76 and 1,643,737

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Solution

The fourth proportional to 3,918,413.84, 5,879,890.76 and 1,643,737 is: 2,466,557.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,413.84 : 5,879,890.76 = 1,643,737 : x
  2. Step 2: Convert to fraction form
    3,918,413.84/5,879,890.76 = 1,643,737/x
  3. Step 3: Cross multiply
    3,918,413.84x = 5,879,890.76 × 1,643,737
  4. Step 4: Simplify right side
    3,918,413.84x = 9,664,993,998,170.12
  5. Step 5: Solve for x
    x = 9,664,993,998,170.12/3,918,413.84
  6. Step 6: Final answer
    x = 2,466,557.74

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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.