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Finding the Fourth Proportional to 2,984,857.60, 4,477,268.16 and 854,945.60

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Solution

The fourth proportional to 2,984,857.60, 4,477,268.16 and 854,945.60 is: 1,282,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984,857.60 : 4,477,268.16 = 854,945.60 : x
  2. Step 2: Convert to fraction form
    2,984,857.60/4,477,268.16 = 854,945.60/x
  3. Step 3: Cross multiply
    2,984,857.60x = 4,477,268.16 × 854,945.60
  4. Step 4: Simplify right side
    2,984,857.60x = 3,827,820,713,412.10
  5. Step 5: Solve for x
    x = 3,827,820,713,412.10/2,984,857.60
  6. Step 6: Final answer
    x = 1,282,413.18

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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.