Home / 421,102.58-631,981.42-293,916.57

Finding the Fourth Proportional to 421,102.58, 631,981.42 and 293,916.57

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Solution

The fourth proportional to 421,102.58, 631,981.42 and 293,916.57 is: 441,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,102.58 : 631,981.42 = 293,916.57 : x
  2. Step 2: Convert to fraction form
    421,102.58/631,981.42 = 293,916.57/x
  3. Step 3: Cross multiply
    421,102.58x = 631,981.42 × 293,916.57
  4. Step 4: Simplify right side
    421,102.58x = 185,749,812,794.85
  5. Step 5: Solve for x
    x = 185,749,812,794.85/421,102.58
  6. Step 6: Final answer
    x = 441,103.48

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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.