Home / 1,298,611.40-1,792,635.54-789,476.36

Finding the Fourth Proportional to 1,298,611.40, 1,792,635.54 and 789,476.36

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Solution

The fourth proportional to 1,298,611.40, 1,792,635.54 and 789,476.36 is: 1,089,812.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,611.40 : 1,792,635.54 = 789,476.36 : x
  2. Step 2: Convert to fraction form
    1,298,611.40/1,792,635.54 = 789,476.36/x
  3. Step 3: Cross multiply
    1,298,611.40x = 1,792,635.54 × 789,476.36
  4. Step 4: Simplify right side
    1,298,611.40x = 1,415,243,380,925.83
  5. Step 5: Solve for x
    x = 1,415,243,380,925.83/1,298,611.40
  6. Step 6: Final answer
    x = 1,089,812.84

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Why These Related Problems?

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