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Finding the Fourth Proportional to 3,668,774.80, 5,503,939.80 and 1,109,779.60

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Solution

The fourth proportional to 3,668,774.80, 5,503,939.80 and 1,109,779.60 is: 1,664,904.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668,774.80 : 5,503,939.80 = 1,109,779.60 : x
  2. Step 2: Convert to fraction form
    3,668,774.80/5,503,939.80 = 1,109,779.60/x
  3. Step 3: Cross multiply
    3,668,774.80x = 5,503,939.80 × 1,109,779.60
  4. Step 4: Simplify right side
    3,668,774.80x = 6,108,160,109,668.08
  5. Step 5: Solve for x
    x = 6,108,160,109,668.08/3,668,774.80
  6. Step 6: Final answer
    x = 1,664,904.62

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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.