Home / 3,409,622.40-5,114,433.60-1,988,947.20

Finding the Fourth Proportional to 3,409,622.40, 5,114,433.60 and 1,988,947.20

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Solution

The fourth proportional to 3,409,622.40, 5,114,433.60 and 1,988,947.20 is: 2,983,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409,622.40 : 5,114,433.60 = 1,988,947.20 : x
  2. Step 2: Convert to fraction form
    3,409,622.40/5,114,433.60 = 1,988,947.20/x
  3. Step 3: Cross multiply
    3,409,622.40x = 5,114,433.60 × 1,988,947.20
  4. Step 4: Simplify right side
    3,409,622.40x = 10,172,338,388,305.92
  5. Step 5: Solve for x
    x = 10,172,338,388,305.92/3,409,622.40
  6. Step 6: Final answer
    x = 2,983,420.80

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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.