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Finding the Fourth Proportional to 630,336, 869,936.52 and 350,961.30

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Solution

The fourth proportional to 630,336, 869,936.52 and 350,961.30 is: 484,367.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,336 : 869,936.52 = 350,961.30 : x
  2. Step 2: Convert to fraction form
    630,336/869,936.52 = 350,961.30/x
  3. Step 3: Cross multiply
    630,336x = 869,936.52 × 350,961.30
  4. Step 4: Simplify right side
    630,336x = 305,314,051,976.68
  5. Step 5: Solve for x
    x = 305,314,051,976.68/630,336
  6. Step 6: Final answer
    x = 484,367.15

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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.