Home / 777,283.37-1,166,263.88-272,206.65

Finding the Fourth Proportional to 777,283.37, 1,166,263.88 and 272,206.65

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Solution

The fourth proportional to 777,283.37, 1,166,263.88 and 272,206.65 is: 408,428.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,283.37 : 1,166,263.88 = 272,206.65 : x
  2. Step 2: Convert to fraction form
    777,283.37/1,166,263.88 = 272,206.65/x
  3. Step 3: Cross multiply
    777,283.37x = 1,166,263.88 × 272,206.65
  4. Step 4: Simplify right side
    777,283.37x = 317,464,783,790.80
  5. Step 5: Solve for x
    x = 317,464,783,790.80/777,283.37
  6. Step 6: Final answer
    x = 408,428.63

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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.