Home / 1,118,942.10-1,679,876.64-664,363.22

Finding the Fourth Proportional to 1,118,942.10, 1,679,876.64 and 664,363.22

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Solution

The fourth proportional to 1,118,942.10, 1,679,876.64 and 664,363.22 is: 997,413.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,942.10 : 1,679,876.64 = 664,363.22 : x
  2. Step 2: Convert to fraction form
    1,118,942.10/1,679,876.64 = 664,363.22/x
  3. Step 3: Cross multiply
    1,118,942.10x = 1,679,876.64 × 664,363.22
  4. Step 4: Simplify right side
    1,118,942.10x = 1,116,048,245,353.80
  5. Step 5: Solve for x
    x = 1,116,048,245,353.80/1,118,942.10
  6. Step 6: Final answer
    x = 997,413.76

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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.