Home / 753,491.52-1,129,131.36-378,999.36

Finding the Fourth Proportional to 753,491.52, 1,129,131.36 and 378,999.36

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Solution

The fourth proportional to 753,491.52, 1,129,131.36 and 378,999.36 is: 567,942.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,491.52 : 1,129,131.36 = 378,999.36 : x
  2. Step 2: Convert to fraction form
    753,491.52/1,129,131.36 = 378,999.36/x
  3. Step 3: Cross multiply
    753,491.52x = 1,129,131.36 × 378,999.36
  4. Step 4: Simplify right side
    753,491.52x = 427,940,062,795.93
  5. Step 5: Solve for x
    x = 427,940,062,795.93/753,491.52
  6. Step 6: Final answer
    x = 567,942.77

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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.