Home / 774,751.70-1,162,127.55-459,823.70

Finding the Fourth Proportional to 774,751.70, 1,162,127.55 and 459,823.70

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Solution

The fourth proportional to 774,751.70, 1,162,127.55 and 459,823.70 is: 689,735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,751.70 : 1,162,127.55 = 459,823.70 : x
  2. Step 2: Convert to fraction form
    774,751.70/1,162,127.55 = 459,823.70/x
  3. Step 3: Cross multiply
    774,751.70x = 1,162,127.55 × 459,823.70
  4. Step 4: Simplify right side
    774,751.70x = 534,373,789,912.94
  5. Step 5: Solve for x
    x = 534,373,789,912.94/774,751.70
  6. Step 6: Final answer
    x = 689,735.55

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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.