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Finding the Fourth Proportional to 446,143.90, 615,450.50 and 284,829.41

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Solution

The fourth proportional to 446,143.90, 615,450.50 and 284,829.41 is: 392,918.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,143.90 : 615,450.50 = 284,829.41 : x
  2. Step 2: Convert to fraction form
    446,143.90/615,450.50 = 284,829.41/x
  3. Step 3: Cross multiply
    446,143.90x = 615,450.50 × 284,829.41
  4. Step 4: Simplify right side
    446,143.90x = 175,298,405,583.96
  5. Step 5: Solve for x
    x = 175,298,405,583.96/446,143.90
  6. Step 6: Final answer
    x = 392,918.98

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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.