Home / 3,435,368.20-5,155,020.60-1,306,979.80

Finding the Fourth Proportional to 3,435,368.20, 5,155,020.60 and 1,306,979.80

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Solution

The fourth proportional to 3,435,368.20, 5,155,020.60 and 1,306,979.80 is: 1,961,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435,368.20 : 5,155,020.60 = 1,306,979.80 : x
  2. Step 2: Convert to fraction form
    3,435,368.20/5,155,020.60 = 1,306,979.80/x
  3. Step 3: Cross multiply
    3,435,368.20x = 5,155,020.60 × 1,306,979.80
  4. Step 4: Simplify right side
    3,435,368.20x = 6,737,507,792,783.88
  5. Step 5: Solve for x
    x = 6,737,507,792,783.88/3,435,368.20
  6. Step 6: Final answer
    x = 1,961,218.54

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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.