Home / 863,891.20-1,294,314.72-769,957.12

Finding the Fourth Proportional to 863,891.20, 1,294,314.72 and 769,957.12

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Solution

The fourth proportional to 863,891.20, 1,294,314.72 and 769,957.12 is: 1,153,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,891.20 : 1,294,314.72 = 769,957.12 : x
  2. Step 2: Convert to fraction form
    863,891.20/1,294,314.72 = 769,957.12/x
  3. Step 3: Cross multiply
    863,891.20x = 1,294,314.72 × 769,957.12
  4. Step 4: Simplify right side
    863,891.20x = 996,566,834,184.81
  5. Step 5: Solve for x
    x = 996,566,834,184.81/863,891.20
  6. Step 6: Final answer
    x = 1,153,579.10

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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.