Home / 2,769,940.80-4,153,874.40-972,129.60

Finding the Fourth Proportional to 2,769,940.80, 4,153,874.40 and 972,129.60

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Solution

The fourth proportional to 2,769,940.80, 4,153,874.40 and 972,129.60 is: 1,457,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769,940.80 : 4,153,874.40 = 972,129.60 : x
  2. Step 2: Convert to fraction form
    2,769,940.80/4,153,874.40 = 972,129.60/x
  3. Step 3: Cross multiply
    2,769,940.80x = 4,153,874.40 × 972,129.60
  4. Step 4: Simplify right side
    2,769,940.80x = 4,038,104,258,922.24
  5. Step 5: Solve for x
    x = 4,038,104,258,922.24/2,769,940.80
  6. Step 6: Final answer
    x = 1,457,830.53

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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.