Home / 449,789.85-620,733.11-258,831.81

Finding the Fourth Proportional to 449,789.85, 620,733.11 and 258,831.81

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Solution

The fourth proportional to 449,789.85, 620,733.11 and 258,831.81 is: 357,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,789.85 : 620,733.11 = 258,831.81 : x
  2. Step 2: Convert to fraction form
    449,789.85/620,733.11 = 258,831.81/x
  3. Step 3: Cross multiply
    449,789.85x = 620,733.11 × 258,831.81
  4. Step 4: Simplify right side
    449,789.85x = 160,665,473,094.07
  5. Step 5: Solve for x
    x = 160,665,473,094.07/449,789.85
  6. Step 6: Final answer
    x = 357,201.20

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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.