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Finding the Fourth Proportional to 619,925.36, 855,525.41 and 344,284.47

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Solution

The fourth proportional to 619,925.36, 855,525.41 and 344,284.47 is: 475,128.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,925.36 : 855,525.41 = 344,284.47 : x
  2. Step 2: Convert to fraction form
    619,925.36/855,525.41 = 344,284.47/x
  3. Step 3: Cross multiply
    619,925.36x = 855,525.41 × 344,284.47
  4. Step 4: Simplify right side
    619,925.36x = 294,544,110,631.96
  5. Step 5: Solve for x
    x = 294,544,110,631.96/619,925.36
  6. Step 6: Final answer
    x = 475,128.35

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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.