Home / 578,768.60-867,861.30-342,183.80

Finding the Fourth Proportional to 578,768.60, 867,861.30 and 342,183.80

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Solution

The fourth proportional to 578,768.60, 867,861.30 and 342,183.80 is: 513,103.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,768.60 : 867,861.30 = 342,183.80 : x
  2. Step 2: Convert to fraction form
    578,768.60/867,861.30 = 342,183.80/x
  3. Step 3: Cross multiply
    578,768.60x = 867,861.30 × 342,183.80
  4. Step 4: Simplify right side
    578,768.60x = 296,968,077,506.94
  5. Step 5: Solve for x
    x = 296,968,077,506.94/578,768.60
  6. Step 6: Final answer
    x = 513,103.30

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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.