Home / 421,972.60-632,521.48-263,837.92

Finding the Fourth Proportional to 421,972.60, 632,521.48 and 263,837.92

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Solution

The fourth proportional to 421,972.60, 632,521.48 and 263,837.92 is: 395,483.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,972.60 : 632,521.48 = 263,837.92 : x
  2. Step 2: Convert to fraction form
    421,972.60/632,521.48 = 263,837.92/x
  3. Step 3: Cross multiply
    421,972.60x = 632,521.48 × 263,837.92
  4. Step 4: Simplify right side
    421,972.60x = 166,883,151,638.52
  5. Step 5: Solve for x
    x = 166,883,151,638.52/421,972.60
  6. Step 6: Final answer
    x = 395,483.38

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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.