Home / 421,981.47-632,534.81-263,846.79

Finding the Fourth Proportional to 421,981.47, 632,534.81 and 263,846.79

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Solution

The fourth proportional to 421,981.47, 632,534.81 and 263,846.79 is: 395,496.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,981.47 : 632,534.81 = 263,846.79 : x
  2. Step 2: Convert to fraction form
    421,981.47/632,534.81 = 263,846.79/x
  3. Step 3: Cross multiply
    421,981.47x = 632,534.81 × 263,846.79
  4. Step 4: Simplify right side
    421,981.47x = 166,892,277,862.53
  5. Step 5: Solve for x
    x = 166,892,277,862.53/421,981.47
  6. Step 6: Final answer
    x = 395,496.70

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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.