Home / 858,907.80-1,183,342.32-664,647.48

Finding the Fourth Proportional to 858,907.80, 1,183,342.32 and 664,647.48

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Solution

The fourth proportional to 858,907.80, 1,183,342.32 and 664,647.48 is: 915,704.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,907.80 : 1,183,342.32 = 664,647.48 : x
  2. Step 2: Convert to fraction form
    858,907.80/1,183,342.32 = 664,647.48/x
  3. Step 3: Cross multiply
    858,907.80x = 1,183,342.32 × 664,647.48
  4. Step 4: Simplify right side
    858,907.80x = 786,505,490,965.35
  5. Step 5: Solve for x
    x = 786,505,490,965.35/858,907.80
  6. Step 6: Final answer
    x = 915,704.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.