Home / 879,879.40-1,318,944.30-405,737.80

Finding the Fourth Proportional to 879,879.40, 1,318,944.30 and 405,737.80

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Solution

The fourth proportional to 879,879.40, 1,318,944.30 and 405,737.80 is: 608,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,879.40 : 1,318,944.30 = 405,737.80 : x
  2. Step 2: Convert to fraction form
    879,879.40/1,318,944.30 = 405,737.80/x
  3. Step 3: Cross multiply
    879,879.40x = 1,318,944.30 × 405,737.80
  4. Step 4: Simplify right side
    879,879.40x = 535,145,558,604.54
  5. Step 5: Solve for x
    x = 535,145,558,604.54/879,879.40
  6. Step 6: Final answer
    x = 608,203.30

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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.