Home / 2,672,015.70-4,008,023.55-778,818.90

Finding the Fourth Proportional to 2,672,015.70, 4,008,023.55 and 778,818.90

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Solution

The fourth proportional to 2,672,015.70, 4,008,023.55 and 778,818.90 is: 1,168,228.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,015.70 : 4,008,023.55 = 778,818.90 : x
  2. Step 2: Convert to fraction form
    2,672,015.70/4,008,023.55 = 778,818.90/x
  3. Step 3: Cross multiply
    2,672,015.70x = 4,008,023.55 × 778,818.90
  4. Step 4: Simplify right side
    2,672,015.70x = 3,121,524,492,385.10
  5. Step 5: Solve for x
    x = 3,121,524,492,385.10/2,672,015.70
  6. Step 6: Final answer
    x = 1,168,228.35

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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.