Home / 2,719,409.60-4,080,280.80-1,389,713.60

Finding the Fourth Proportional to 2,719,409.60, 4,080,280.80 and 1,389,713.60

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Solution

The fourth proportional to 2,719,409.60, 4,080,280.80 and 1,389,713.60 is: 2,085,166.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719,409.60 : 4,080,280.80 = 1,389,713.60 : x
  2. Step 2: Convert to fraction form
    2,719,409.60/4,080,280.80 = 1,389,713.60/x
  3. Step 3: Cross multiply
    2,719,409.60x = 4,080,280.80 × 1,389,713.60
  4. Step 4: Simplify right side
    2,719,409.60x = 5,670,421,719,578.88
  5. Step 5: Solve for x
    x = 5,670,421,719,578.88/2,719,409.60
  6. Step 6: Final answer
    x = 2,085,166.47

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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.