Home / 1,269,020.79-1,751,640.83-816,311.79

Finding the Fourth Proportional to 1,269,020.79, 1,751,640.83 and 816,311.79

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Solution

The fourth proportional to 1,269,020.79, 1,751,640.83 and 816,311.79 is: 1,126,762.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,020.79 : 1,751,640.83 = 816,311.79 : x
  2. Step 2: Convert to fraction form
    1,269,020.79/1,751,640.83 = 816,311.79/x
  3. Step 3: Cross multiply
    1,269,020.79x = 1,751,640.83 × 816,311.79
  4. Step 4: Simplify right side
    1,269,020.79x = 1,429,885,060,354.00
  5. Step 5: Solve for x
    x = 1,429,885,060,354.00/1,269,020.79
  6. Step 6: Final answer
    x = 1,126,762.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.