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Finding the Fourth Proportional to 501,669, 692,304.30 and 275,313.96

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Solution

The fourth proportional to 501,669, 692,304.30 and 275,313.96 is: 379,933.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,669 : 692,304.30 = 275,313.96 : x
  2. Step 2: Convert to fraction form
    501,669/692,304.30 = 275,313.96/x
  3. Step 3: Cross multiply
    501,669x = 692,304.30 × 275,313.96
  4. Step 4: Simplify right side
    501,669x = 190,601,038,358.03
  5. Step 5: Solve for x
    x = 190,601,038,358.03/501,669
  6. Step 6: Final answer
    x = 379,933.86

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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.