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Finding the Fourth Proportional to 489,326.36, 733,953.90 and 219,538.04

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Solution

The fourth proportional to 489,326.36, 733,953.90 and 219,538.04 is: 329,291.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,326.36 : 733,953.90 = 219,538.04 : x
  2. Step 2: Convert to fraction form
    489,326.36/733,953.90 = 219,538.04/x
  3. Step 3: Cross multiply
    489,326.36x = 733,953.90 × 219,538.04
  4. Step 4: Simplify right side
    489,326.36x = 161,130,800,656.36
  5. Step 5: Solve for x
    x = 161,130,800,656.36/489,326.36
  6. Step 6: Final answer
    x = 329,291.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.