Home / 1,362,407.31-1,880,120.84-789,779.43

Finding the Fourth Proportional to 1,362,407.31, 1,880,120.84 and 789,779.43

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Solution

The fourth proportional to 1,362,407.31, 1,880,120.84 and 789,779.43 is: 1,089,894.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,407.31 : 1,880,120.84 = 789,779.43 : x
  2. Step 2: Convert to fraction form
    1,362,407.31/1,880,120.84 = 789,779.43/x
  3. Step 3: Cross multiply
    1,362,407.31x = 1,880,120.84 × 789,779.43
  4. Step 4: Simplify right side
    1,362,407.31x = 1,484,880,761,397.42
  5. Step 5: Solve for x
    x = 1,484,880,761,397.42/1,362,407.31
  6. Step 6: Final answer
    x = 1,089,894.89

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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.