Home / 753,323.85-1,129,696.56-320,767.11

Finding the Fourth Proportional to 753,323.85, 1,129,696.56 and 320,767.11

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Solution

The fourth proportional to 753,323.85, 1,129,696.56 and 320,767.11 is: 481,027.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,323.85 : 1,129,696.56 = 320,767.11 : x
  2. Step 2: Convert to fraction form
    753,323.85/1,129,696.56 = 320,767.11/x
  3. Step 3: Cross multiply
    753,323.85x = 1,129,696.56 × 320,767.11
  4. Step 4: Simplify right side
    753,323.85x = 362,369,500,728.14
  5. Step 5: Solve for x
    x = 362,369,500,728.14/753,323.85
  6. Step 6: Final answer
    x = 481,027.52

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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.