Home / 1,278,491.60-1,915,987.80-850,811.60

Finding the Fourth Proportional to 1,278,491.60, 1,915,987.80 and 850,811.60

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Solution

The fourth proportional to 1,278,491.60, 1,915,987.80 and 850,811.60 is: 1,275,053.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,491.60 : 1,915,987.80 = 850,811.60 : x
  2. Step 2: Convert to fraction form
    1,278,491.60/1,915,987.80 = 850,811.60/x
  3. Step 3: Cross multiply
    1,278,491.60x = 1,915,987.80 × 850,811.60
  4. Step 4: Simplify right side
    1,278,491.60x = 1,630,144,645,698.48
  5. Step 5: Solve for x
    x = 1,630,144,645,698.48/1,278,491.60
  6. Step 6: Final answer
    x = 1,275,053.07

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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.