Home / 3,084,004.80-4,626,007.20-840,139.20

Finding the Fourth Proportional to 3,084,004.80, 4,626,007.20 and 840,139.20

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Solution

The fourth proportional to 3,084,004.80, 4,626,007.20 and 840,139.20 is: 1,260,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084,004.80 : 4,626,007.20 = 840,139.20 : x
  2. Step 2: Convert to fraction form
    3,084,004.80/4,626,007.20 = 840,139.20/x
  3. Step 3: Cross multiply
    3,084,004.80x = 4,626,007.20 × 840,139.20
  4. Step 4: Simplify right side
    3,084,004.80x = 3,886,489,988,202.24
  5. Step 5: Solve for x
    x = 3,886,489,988,202.24/3,084,004.80
  6. Step 6: Final answer
    x = 1,260,208.80

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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.