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Finding the Fourth Proportional to 889,922.34, 1,334,871.90 and 216,009

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Solution

The fourth proportional to 889,922.34, 1,334,871.90 and 216,009 is: 324,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,922.34 : 1,334,871.90 = 216,009 : x
  2. Step 2: Convert to fraction form
    889,922.34/1,334,871.90 = 216,009/x
  3. Step 3: Cross multiply
    889,922.34x = 1,334,871.90 × 216,009
  4. Step 4: Simplify right side
    889,922.34x = 288,344,344,247.10
  5. Step 5: Solve for x
    x = 288,344,344,247.10/889,922.34
  6. Step 6: Final answer
    x = 324,010.68

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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.