Home / 1,328,900.40-1,993,350.60-1,226,257.20

Finding the Fourth Proportional to 1,328,900.40, 1,993,350.60 and 1,226,257.20

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Solution

The fourth proportional to 1,328,900.40, 1,993,350.60 and 1,226,257.20 is: 1,839,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,900.40 : 1,993,350.60 = 1,226,257.20 : x
  2. Step 2: Convert to fraction form
    1,328,900.40/1,993,350.60 = 1,226,257.20/x
  3. Step 3: Cross multiply
    1,328,900.40x = 1,993,350.60 × 1,226,257.20
  4. Step 4: Simplify right side
    1,328,900.40x = 2,444,360,525,374.32
  5. Step 5: Solve for x
    x = 2,444,360,525,374.32/1,328,900.40
  6. Step 6: Final answer
    x = 1,839,385.80

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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.