Home / 850,860.87-1,276,512.71-318,423.03

Finding the Fourth Proportional to 850,860.87, 1,276,512.71 and 318,423.03

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Solution

The fourth proportional to 850,860.87, 1,276,512.71 and 318,423.03 is: 477,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,860.87 : 1,276,512.71 = 318,423.03 : x
  2. Step 2: Convert to fraction form
    850,860.87/1,276,512.71 = 318,423.03/x
  3. Step 3: Cross multiply
    850,860.87x = 1,276,512.71 × 318,423.03
  4. Step 4: Simplify right side
    850,860.87x = 406,471,043,359.60
  5. Step 5: Solve for x
    x = 406,471,043,359.60/850,860.87
  6. Step 6: Final answer
    x = 477,717.40

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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.