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Finding the Fourth Proportional to 484,490.53, 668,590.40 and 269,630.54

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Solution

The fourth proportional to 484,490.53, 668,590.40 and 269,630.54 is: 372,086.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,490.53 : 668,590.40 = 269,630.54 : x
  2. Step 2: Convert to fraction form
    484,490.53/668,590.40 = 269,630.54/x
  3. Step 3: Cross multiply
    484,490.53x = 668,590.40 × 269,630.54
  4. Step 4: Simplify right side
    484,490.53x = 180,272,390,429.15
  5. Step 5: Solve for x
    x = 180,272,390,429.15/484,490.53
  6. Step 6: Final answer
    x = 372,086.51

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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.