Home / 619,928.36-855,529.55-344,287.47

Finding the Fourth Proportional to 619,928.36, 855,529.55 and 344,287.47

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Solution

The fourth proportional to 619,928.36, 855,529.55 and 344,287.47 is: 475,132.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,928.36 : 855,529.55 = 344,287.47 : x
  2. Step 2: Convert to fraction form
    619,928.36/855,529.55 = 344,287.47/x
  3. Step 3: Cross multiply
    619,928.36x = 855,529.55 × 344,287.47
  4. Step 4: Simplify right side
    619,928.36x = 294,548,102,558.30
  5. Step 5: Solve for x
    x = 294,548,102,558.30/619,928.36
  6. Step 6: Final answer
    x = 475,132.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.