Home / 2,938,913.40-4,408,370.10-809,326.20

Finding the Fourth Proportional to 2,938,913.40, 4,408,370.10 and 809,326.20

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Solution

The fourth proportional to 2,938,913.40, 4,408,370.10 and 809,326.20 is: 1,213,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938,913.40 : 4,408,370.10 = 809,326.20 : x
  2. Step 2: Convert to fraction form
    2,938,913.40/4,408,370.10 = 809,326.20/x
  3. Step 3: Cross multiply
    2,938,913.40x = 4,408,370.10 × 809,326.20
  4. Step 4: Simplify right side
    2,938,913.40x = 3,567,809,421,226.62
  5. Step 5: Solve for x
    x = 3,567,809,421,226.62/2,938,913.40
  6. Step 6: Final answer
    x = 1,213,989.30

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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.