Home / 2,915,999.80-4,373,999.70-921,455.80

Finding the Fourth Proportional to 2,915,999.80, 4,373,999.70 and 921,455.80

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Solution

The fourth proportional to 2,915,999.80, 4,373,999.70 and 921,455.80 is: 1,382,183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915,999.80 : 4,373,999.70 = 921,455.80 : x
  2. Step 2: Convert to fraction form
    2,915,999.80/4,373,999.70 = 921,455.80/x
  3. Step 3: Cross multiply
    2,915,999.80x = 4,373,999.70 × 921,455.80
  4. Step 4: Simplify right side
    2,915,999.80x = 4,030,447,392,763.26
  5. Step 5: Solve for x
    x = 4,030,447,392,763.26/2,915,999.80
  6. Step 6: Final answer
    x = 1,382,183.70

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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.