Home / 786,749.18-1,179,834.39-281,173.50

Finding the Fourth Proportional to 786,749.18, 1,179,834.39 and 281,173.50

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Solution

The fourth proportional to 786,749.18, 1,179,834.39 and 281,173.50 is: 421,656.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,749.18 : 1,179,834.39 = 281,173.50 : x
  2. Step 2: Convert to fraction form
    786,749.18/1,179,834.39 = 281,173.50/x
  3. Step 3: Cross multiply
    786,749.18x = 1,179,834.39 × 281,173.50
  4. Step 4: Simplify right side
    786,749.18x = 331,738,164,856.67
  5. Step 5: Solve for x
    x = 331,738,164,856.67/786,749.18
  6. Step 6: Final answer
    x = 421,656.83

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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.