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Finding the Fourth Proportional to 3,154,643.60, 4,735,464.60 and 1,957,917.20

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Solution

The fourth proportional to 3,154,643.60, 4,735,464.60 and 1,957,917.20 is: 2,939,047.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154,643.60 : 4,735,464.60 = 1,957,917.20 : x
  2. Step 2: Convert to fraction form
    3,154,643.60/4,735,464.60 = 1,957,917.20/x
  3. Step 3: Cross multiply
    3,154,643.60x = 4,735,464.60 × 1,957,917.20
  4. Step 4: Simplify right side
    3,154,643.60x = 9,271,647,590,331.12
  5. Step 5: Solve for x
    x = 9,271,647,590,331.12/3,154,643.60
  6. Step 6: Final answer
    x = 2,939,047.56

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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.