Home / 753,279.72-1,129,783.26-303,981.80

Finding the Fourth Proportional to 753,279.72, 1,129,783.26 and 303,981.80

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Solution

The fourth proportional to 753,279.72, 1,129,783.26 and 303,981.80 is: 455,917.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,279.72 : 1,129,783.26 = 303,981.80 : x
  2. Step 2: Convert to fraction form
    753,279.72/1,129,783.26 = 303,981.80/x
  3. Step 3: Cross multiply
    753,279.72x = 1,129,783.26 × 303,981.80
  4. Step 4: Simplify right side
    753,279.72x = 343,433,548,984.67
  5. Step 5: Solve for x
    x = 343,433,548,984.67/753,279.72
  6. Step 6: Final answer
    x = 455,917.69

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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.