Home / 1,298,610.90-1,792,634.85-789,475.86

Finding the Fourth Proportional to 1,298,610.90, 1,792,634.85 and 789,475.86

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Solution

The fourth proportional to 1,298,610.90, 1,792,634.85 and 789,475.86 is: 1,089,812.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,610.90 : 1,792,634.85 = 789,475.86 : x
  2. Step 2: Convert to fraction form
    1,298,610.90/1,792,634.85 = 789,475.86/x
  3. Step 3: Cross multiply
    1,298,610.90x = 1,792,634.85 × 789,475.86
  4. Step 4: Simplify right side
    1,298,610.90x = 1,415,241,939,869.72
  5. Step 5: Solve for x
    x = 1,415,241,939,869.72/1,298,610.90
  6. Step 6: Final answer
    x = 1,089,812.15

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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.