Home / 3,417,668.20-5,128,470.60-1,289,279.80

Finding the Fourth Proportional to 3,417,668.20, 5,128,470.60 and 1,289,279.80

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Solution

The fourth proportional to 3,417,668.20, 5,128,470.60 and 1,289,279.80 is: 1,934,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417,668.20 : 5,128,470.60 = 1,289,279.80 : x
  2. Step 2: Convert to fraction form
    3,417,668.20/5,128,470.60 = 1,289,279.80/x
  3. Step 3: Cross multiply
    3,417,668.20x = 5,128,470.60 × 1,289,279.80
  4. Step 4: Simplify right side
    3,417,668.20x = 6,612,033,549,473.88
  5. Step 5: Solve for x
    x = 6,612,033,549,473.88/3,417,668.20
  6. Step 6: Final answer
    x = 1,934,662.22

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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.