Home / 1,271,638.39-1,907,380.33-451,017.67

Finding the Fourth Proportional to 1,271,638.39, 1,907,380.33 and 451,017.67

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Solution

The fourth proportional to 1,271,638.39, 1,907,380.33 and 451,017.67 is: 676,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,638.39 : 1,907,380.33 = 451,017.67 : x
  2. Step 2: Convert to fraction form
    1,271,638.39/1,907,380.33 = 451,017.67/x
  3. Step 3: Cross multiply
    1,271,638.39x = 1,907,380.33 × 451,017.67
  4. Step 4: Simplify right side
    1,271,638.39x = 860,262,232,240.43
  5. Step 5: Solve for x
    x = 860,262,232,240.43/1,271,638.39
  6. Step 6: Final answer
    x = 676,499.10

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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.