Home / 421,747.90-631,921.98-296,826.46

Finding the Fourth Proportional to 421,747.90, 631,921.98 and 296,826.46

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Solution

The fourth proportional to 421,747.90, 631,921.98 and 296,826.46 is: 444,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,747.90 : 631,921.98 = 296,826.46 : x
  2. Step 2: Convert to fraction form
    421,747.90/631,921.98 = 296,826.46/x
  3. Step 3: Cross multiply
    421,747.90x = 631,921.98 × 296,826.46
  4. Step 4: Simplify right side
    421,747.90x = 187,571,164,319.59
  5. Step 5: Solve for x
    x = 187,571,164,319.59/421,747.90
  6. Step 6: Final answer
    x = 444,747.12

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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.