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Finding the Fourth Proportional to 3,160,794.08, 4,739,271.12 and 1,239,403.28

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Solution

The fourth proportional to 3,160,794.08, 4,739,271.12 and 1,239,403.28 is: 1,858,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160,794.08 : 4,739,271.12 = 1,239,403.28 : x
  2. Step 2: Convert to fraction form
    3,160,794.08/4,739,271.12 = 1,239,403.28/x
  3. Step 3: Cross multiply
    3,160,794.08x = 4,739,271.12 × 1,239,403.28
  4. Step 4: Simplify right side
    3,160,794.08x = 5,873,868,147,240.92
  5. Step 5: Solve for x
    x = 5,873,868,147,240.92/3,160,794.08
  6. Step 6: Final answer
    x = 1,858,352.05

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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.