Home / 1,336,021.60-2,004,109.20-389,538.40

Finding the Fourth Proportional to 1,336,021.60, 2,004,109.20 and 389,538.40

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Solution

The fourth proportional to 1,336,021.60, 2,004,109.20 and 389,538.40 is: 584,329.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,021.60 : 2,004,109.20 = 389,538.40 : x
  2. Step 2: Convert to fraction form
    1,336,021.60/2,004,109.20 = 389,538.40/x
  3. Step 3: Cross multiply
    1,336,021.60x = 2,004,109.20 × 389,538.40
  4. Step 4: Simplify right side
    1,336,021.60x = 780,677,491,193.28
  5. Step 5: Solve for x
    x = 780,677,491,193.28/1,336,021.60
  6. Step 6: Final answer
    x = 584,329.99

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1.5x scale

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.