Home / 419,926.90-629,889.54-104,384.11

Finding the Fourth Proportional to 419,926.90, 629,889.54 and 104,384.11

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Solution

The fourth proportional to 419,926.90, 629,889.54 and 104,384.11 is: 156,575.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,926.90 : 629,889.54 = 104,384.11 : x
  2. Step 2: Convert to fraction form
    419,926.90/629,889.54 = 104,384.11/x
  3. Step 3: Cross multiply
    419,926.90x = 629,889.54 × 104,384.11
  4. Step 4: Simplify right side
    419,926.90x = 65,750,459,031.21
  5. Step 5: Solve for x
    x = 65,750,459,031.21/419,926.90
  6. Step 6: Final answer
    x = 156,575.96

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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.