Home / 779,958-1,169,789.04-380,196.72

Finding the Fourth Proportional to 779,958, 1,169,789.04 and 380,196.72

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Solution

The fourth proportional to 779,958, 1,169,789.04 and 380,196.72 is: 570,222.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,958 : 1,169,789.04 = 380,196.72 : x
  2. Step 2: Convert to fraction form
    779,958/1,169,789.04 = 380,196.72/x
  3. Step 3: Cross multiply
    779,958x = 1,169,789.04 × 380,196.72
  4. Step 4: Simplify right side
    779,958x = 444,749,956,099.95
  5. Step 5: Solve for x
    x = 444,749,956,099.95/779,958
  6. Step 6: Final answer
    x = 570,222.96

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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.