Home / 421,742.40-631,913.73-296,820.96

Finding the Fourth Proportional to 421,742.40, 631,913.73 and 296,820.96

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Solution

The fourth proportional to 421,742.40, 631,913.73 and 296,820.96 is: 444,738.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,742.40 : 631,913.73 = 296,820.96 : x
  2. Step 2: Convert to fraction form
    421,742.40/631,913.73 = 296,820.96/x
  3. Step 3: Cross multiply
    421,742.40x = 631,913.73 × 296,820.96
  4. Step 4: Simplify right side
    421,742.40x = 187,565,239,975.78
  5. Step 5: Solve for x
    x = 187,565,239,975.78/421,742.40
  6. Step 6: Final answer
    x = 444,738.87

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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.