Home / 777,086.40-1,166,424.67-641,719.31

Finding the Fourth Proportional to 777,086.40, 1,166,424.67 and 641,719.31

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Solution

The fourth proportional to 777,086.40, 1,166,424.67 and 641,719.31 is: 963,235.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,086.40 : 1,166,424.67 = 641,719.31 : x
  2. Step 2: Convert to fraction form
    777,086.40/1,166,424.67 = 641,719.31/x
  3. Step 3: Cross multiply
    777,086.40x = 1,166,424.67 × 641,719.31
  4. Step 4: Simplify right side
    777,086.40x = 748,517,229,369.40
  5. Step 5: Solve for x
    x = 748,517,229,369.40/777,086.40
  6. Step 6: Final answer
    x = 963,235.52

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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.