Home / 1,318,172.08-1,977,258.12-419,609.92

Finding the Fourth Proportional to 1,318,172.08, 1,977,258.12 and 419,609.92

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Solution

The fourth proportional to 1,318,172.08, 1,977,258.12 and 419,609.92 is: 629,414.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,172.08 : 1,977,258.12 = 419,609.92 : x
  2. Step 2: Convert to fraction form
    1,318,172.08/1,977,258.12 = 419,609.92/x
  3. Step 3: Cross multiply
    1,318,172.08x = 1,977,258.12 × 419,609.92
  4. Step 4: Simplify right side
    1,318,172.08x = 829,677,121,552.55
  5. Step 5: Solve for x
    x = 829,677,121,552.55/1,318,172.08
  6. Step 6: Final answer
    x = 629,414.88

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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.