Home / 3,420,815.26-5,130,393.45-1,425,182.62

Finding the Fourth Proportional to 3,420,815.26, 5,130,393.45 and 1,425,182.62

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Solution

The fourth proportional to 3,420,815.26, 5,130,393.45 and 1,425,182.62 is: 2,137,428.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420,815.26 : 5,130,393.45 = 1,425,182.62 : x
  2. Step 2: Convert to fraction form
    3,420,815.26/5,130,393.45 = 1,425,182.62/x
  3. Step 3: Cross multiply
    3,420,815.26x = 5,130,393.45 × 1,425,182.62
  4. Step 4: Simplify right side
    3,420,815.26x = 7,311,747,578,701.84
  5. Step 5: Solve for x
    x = 7,311,747,578,701.84/3,420,815.26
  6. Step 6: Final answer
    x = 2,137,428.37

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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.