Home / 859,517.68-1,289,288.40-228,428.32

Finding the Fourth Proportional to 859,517.68, 1,289,288.40 and 228,428.32

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Solution

The fourth proportional to 859,517.68, 1,289,288.40 and 228,428.32 is: 342,645.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,517.68 : 1,289,288.40 = 228,428.32 : x
  2. Step 2: Convert to fraction form
    859,517.68/1,289,288.40 = 228,428.32/x
  3. Step 3: Cross multiply
    859,517.68x = 1,289,288.40 × 228,428.32
  4. Step 4: Simplify right side
    859,517.68x = 294,509,983,207.49
  5. Step 5: Solve for x
    x = 294,509,983,207.49/859,517.68
  6. Step 6: Final answer
    x = 342,645.64

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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.