Home / 2,672,317.40-4,008,087.30-778,861.40

Finding the Fourth Proportional to 2,672,317.40, 4,008,087.30 and 778,861.40

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Solution

The fourth proportional to 2,672,317.40, 4,008,087.30 and 778,861.40 is: 1,168,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,317.40 : 4,008,087.30 = 778,861.40 : x
  2. Step 2: Convert to fraction form
    2,672,317.40/4,008,087.30 = 778,861.40/x
  3. Step 3: Cross multiply
    2,672,317.40x = 4,008,087.30 × 778,861.40
  4. Step 4: Simplify right side
    2,672,317.40x = 3,121,744,485,800.22
  5. Step 5: Solve for x
    x = 3,121,744,485,800.22/2,672,317.40
  6. Step 6: Final answer
    x = 1,168,178.78

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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.