Home / 421,746.90-631,920.50-296,825.46

Finding the Fourth Proportional to 421,746.90, 631,920.50 and 296,825.46

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Solution

The fourth proportional to 421,746.90, 631,920.50 and 296,825.46 is: 444,745.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,746.90 : 631,920.50 = 296,825.46 : x
  2. Step 2: Convert to fraction form
    421,746.90/631,920.50 = 296,825.46/x
  3. Step 3: Cross multiply
    421,746.90x = 631,920.50 × 296,825.46
  4. Step 4: Simplify right side
    421,746.90x = 187,570,093,095.93
  5. Step 5: Solve for x
    x = 187,570,093,095.93/421,746.90
  6. Step 6: Final answer
    x = 444,745.64

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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.