Home / 741,763.86-1,112,668.47-255,440.78

Finding the Fourth Proportional to 741,763.86, 1,112,668.47 and 255,440.78

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Solution

The fourth proportional to 741,763.86, 1,112,668.47 and 255,440.78 is: 383,168.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,763.86 : 1,112,668.47 = 255,440.78 : x
  2. Step 2: Convert to fraction form
    741,763.86/1,112,668.47 = 255,440.78/x
  3. Step 3: Cross multiply
    741,763.86x = 1,112,668.47 × 255,440.78
  4. Step 4: Simplify right side
    741,763.86x = 284,220,901,858.21
  5. Step 5: Solve for x
    x = 284,220,901,858.21/741,763.86
  6. Step 6: Final answer
    x = 383,168.98

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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.