Home / 786,003.80-1,179,005.70-698,912.60

Finding the Fourth Proportional to 786,003.80, 1,179,005.70 and 698,912.60

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Solution

The fourth proportional to 786,003.80, 1,179,005.70 and 698,912.60 is: 1,048,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,003.80 : 1,179,005.70 = 698,912.60 : x
  2. Step 2: Convert to fraction form
    786,003.80/1,179,005.70 = 698,912.60/x
  3. Step 3: Cross multiply
    786,003.80x = 1,179,005.70 × 698,912.60
  4. Step 4: Simplify right side
    786,003.80x = 824,021,939,201.82
  5. Step 5: Solve for x
    x = 824,021,939,201.82/786,003.80
  6. Step 6: Final answer
    x = 1,048,368.90

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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.