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Finding the Fourth Proportional to 625,533.82, 863,230.86 and 349,888.42

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Solution

The fourth proportional to 625,533.82, 863,230.86 and 349,888.42 is: 482,842.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,533.82 : 863,230.86 = 349,888.42 : x
  2. Step 2: Convert to fraction form
    625,533.82/863,230.86 = 349,888.42/x
  3. Step 3: Cross multiply
    625,533.82x = 863,230.86 × 349,888.42
  4. Step 4: Simplify right side
    625,533.82x = 302,034,481,700.64
  5. Step 5: Solve for x
    x = 302,034,481,700.64/625,533.82
  6. Step 6: Final answer
    x = 482,842.77

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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.