Home / 668,406.58-1,002,777.85-308,831.89

Finding the Fourth Proportional to 668,406.58, 1,002,777.85 and 308,831.89

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Solution

The fourth proportional to 668,406.58, 1,002,777.85 and 308,831.89 is: 463,325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,406.58 : 1,002,777.85 = 308,831.89 : x
  2. Step 2: Convert to fraction form
    668,406.58/1,002,777.85 = 308,831.89/x
  3. Step 3: Cross multiply
    668,406.58x = 1,002,777.85 × 308,831.89
  4. Step 4: Simplify right side
    668,406.58x = 309,689,777,556.35
  5. Step 5: Solve for x
    x = 309,689,777,556.35/668,406.58
  6. Step 6: Final answer
    x = 463,325.44

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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.