Home / 799,890.21-1,103,916.87-455,831.37

Finding the Fourth Proportional to 799,890.21, 1,103,916.87 and 455,831.37

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Solution

The fourth proportional to 799,890.21, 1,103,916.87 and 455,831.37 is: 629,086.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,890.21 : 1,103,916.87 = 455,831.37 : x
  2. Step 2: Convert to fraction form
    799,890.21/1,103,916.87 = 455,831.37/x
  3. Step 3: Cross multiply
    799,890.21x = 1,103,916.87 × 455,831.37
  4. Step 4: Simplify right side
    799,890.21x = 503,199,939,218.21
  5. Step 5: Solve for x
    x = 503,199,939,218.21/799,890.21
  6. Step 6: Final answer
    x = 629,086.26

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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.