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Finding the Fourth Proportional to 622,782.62, 859,442.65 and 350,853.77

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Solution

The fourth proportional to 622,782.62, 859,442.65 and 350,853.77 is: 484,179.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,782.62 : 859,442.65 = 350,853.77 : x
  2. Step 2: Convert to fraction form
    622,782.62/859,442.65 = 350,853.77/x
  3. Step 3: Cross multiply
    622,782.62x = 859,442.65 × 350,853.77
  4. Step 4: Simplify right side
    622,782.62x = 301,538,692,974.16
  5. Step 5: Solve for x
    x = 301,538,692,974.16/622,782.62
  6. Step 6: Final answer
    x = 484,179.69

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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.