Home / 2,668,125.60-4,004,812.80-1,321,808.40

Finding the Fourth Proportional to 2,668,125.60, 4,004,812.80 and 1,321,808.40

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Solution

The fourth proportional to 2,668,125.60, 4,004,812.80 and 1,321,808.40 is: 1,984,012.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668,125.60 : 4,004,812.80 = 1,321,808.40 : x
  2. Step 2: Convert to fraction form
    2,668,125.60/4,004,812.80 = 1,321,808.40/x
  3. Step 3: Cross multiply
    2,668,125.60x = 4,004,812.80 × 1,321,808.40
  4. Step 4: Simplify right side
    2,668,125.60x = 5,293,595,199,467.52
  5. Step 5: Solve for x
    x = 5,293,595,199,467.52/2,668,125.60
  6. Step 6: Final answer
    x = 1,984,012.75

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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.