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Finding the Fourth Proportional to 489,763.34, 734,871 and 223,605.44

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Solution

The fourth proportional to 489,763.34, 734,871 and 223,605.44 is: 335,511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,763.34 : 734,871 = 223,605.44 : x
  2. Step 2: Convert to fraction form
    489,763.34/734,871 = 223,605.44/x
  3. Step 3: Cross multiply
    489,763.34x = 734,871 × 223,605.44
  4. Step 4: Simplify right side
    489,763.34x = 164,321,153,298.24
  5. Step 5: Solve for x
    x = 164,321,153,298.24/489,763.34
  6. Step 6: Final answer
    x = 335,511.34

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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.