Home / 1,789,191.20-2,684,181.04-778,471.84

Finding the Fourth Proportional to 1,789,191.20, 2,684,181.04 and 778,471.84

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Solution

The fourth proportional to 1,789,191.20, 2,684,181.04 and 778,471.84 is: 1,167,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,191.20 : 2,684,181.04 = 778,471.84 : x
  2. Step 2: Convert to fraction form
    1,789,191.20/2,684,181.04 = 778,471.84/x
  3. Step 3: Cross multiply
    1,789,191.20x = 2,684,181.04 × 778,471.84
  4. Step 4: Simplify right side
    1,789,191.20x = 2,089,559,353,101.91
  5. Step 5: Solve for x
    x = 2,089,559,353,101.91/1,789,191.20
  6. Step 6: Final answer
    x = 1,167,879.29

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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.