Home / 1,851,374.40-2,776,517.28-786,408

Finding the Fourth Proportional to 1,851,374.40, 2,776,517.28 and 786,408

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Solution

The fourth proportional to 1,851,374.40, 2,776,517.28 and 786,408 is: 1,179,380.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851,374.40 : 2,776,517.28 = 786,408 : x
  2. Step 2: Convert to fraction form
    1,851,374.40/2,776,517.28 = 786,408/x
  3. Step 3: Cross multiply
    1,851,374.40x = 2,776,517.28 × 786,408
  4. Step 4: Simplify right side
    1,851,374.40x = 2,183,475,401,130.24
  5. Step 5: Solve for x
    x = 2,183,475,401,130.24/1,851,374.40
  6. Step 6: Final answer
    x = 1,179,380.79

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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.