Home / 1,492,408.20-2,059,515.54-813,338.76

Finding the Fourth Proportional to 1,492,408.20, 2,059,515.54 and 813,338.76

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Solution

The fourth proportional to 1,492,408.20, 2,059,515.54 and 813,338.76 is: 1,122,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,408.20 : 2,059,515.54 = 813,338.76 : x
  2. Step 2: Convert to fraction form
    1,492,408.20/2,059,515.54 = 813,338.76/x
  3. Step 3: Cross multiply
    1,492,408.20x = 2,059,515.54 × 813,338.76
  4. Step 4: Simplify right side
    1,492,408.20x = 1,675,083,815,504.33
  5. Step 5: Solve for x
    x = 1,675,083,815,504.33/1,492,408.20
  6. Step 6: Final answer
    x = 1,122,403.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.