Home / 493,238.40-739,055.70-445,999.20

Finding the Fourth Proportional to 493,238.40, 739,055.70 and 445,999.20

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Solution

The fourth proportional to 493,238.40, 739,055.70 and 445,999.20 is: 668,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,238.40 : 739,055.70 = 445,999.20 : x
  2. Step 2: Convert to fraction form
    493,238.40/739,055.70 = 445,999.20/x
  3. Step 3: Cross multiply
    493,238.40x = 739,055.70 × 445,999.20
  4. Step 4: Simplify right side
    493,238.40x = 329,618,250,955.44
  5. Step 5: Solve for x
    x = 329,618,250,955.44/493,238.40
  6. Step 6: Final answer
    x = 668,273.70

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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.