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Finding the Fourth Proportional to 1,362,125.98, 1,879,733.84 and 789,498.30

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Solution

The fourth proportional to 1,362,125.98, 1,879,733.84 and 789,498.30 is: 1,089,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,125.98 : 1,879,733.84 = 789,498.30 : x
  2. Step 2: Convert to fraction form
    1,362,125.98/1,879,733.84 = 789,498.30/x
  3. Step 3: Cross multiply
    1,362,125.98x = 1,879,733.84 × 789,498.30
  4. Step 4: Simplify right side
    1,362,125.98x = 1,484,046,657,786.31
  5. Step 5: Solve for x
    x = 1,484,046,657,786.31/1,362,125.98
  6. Step 6: Final answer
    x = 1,089,507.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.