Home / 769,880.10-1,152,633.15-727,986.90

Finding the Fourth Proportional to 769,880.10, 1,152,633.15 and 727,986.90

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Solution

The fourth proportional to 769,880.10, 1,152,633.15 and 727,986.90 is: 1,089,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,880.10 : 1,152,633.15 = 727,986.90 : x
  2. Step 2: Convert to fraction form
    769,880.10/1,152,633.15 = 727,986.90/x
  3. Step 3: Cross multiply
    769,880.10x = 1,152,633.15 × 727,986.90
  4. Step 4: Simplify right side
    769,880.10x = 839,101,833,705.74
  5. Step 5: Solve for x
    x = 839,101,833,705.74/769,880.10
  6. Step 6: Final answer
    x = 1,089,912.36

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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.