Home / 2,128,413.28-3,189,847.55-864,763.60

Finding the Fourth Proportional to 2,128,413.28, 3,189,847.55 and 864,763.60

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Solution

The fourth proportional to 2,128,413.28, 3,189,847.55 and 864,763.60 is: 1,296,019.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,413.28 : 3,189,847.55 = 864,763.60 : x
  2. Step 2: Convert to fraction form
    2,128,413.28/3,189,847.55 = 864,763.60/x
  3. Step 3: Cross multiply
    2,128,413.28x = 3,189,847.55 × 864,763.60
  4. Step 4: Simplify right side
    2,128,413.28x = 2,758,464,038,490.74
  5. Step 5: Solve for x
    x = 2,758,464,038,490.74/2,128,413.28
  6. Step 6: Final answer
    x = 1,296,019.00

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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.