Home / 841,845.38-1,263,081.78-505,127.70

Finding the Fourth Proportional to 841,845.38, 1,263,081.78 and 505,127.70

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Solution

The fourth proportional to 841,845.38, 1,263,081.78 and 505,127.70 is: 757,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,845.38 : 1,263,081.78 = 505,127.70 : x
  2. Step 2: Convert to fraction form
    841,845.38/1,263,081.78 = 505,127.70/x
  3. Step 3: Cross multiply
    841,845.38x = 1,263,081.78 × 505,127.70
  4. Step 4: Simplify right side
    841,845.38x = 638,017,594,443.31
  5. Step 5: Solve for x
    x = 638,017,594,443.31/841,845.38
  6. Step 6: Final answer
    x = 757,879.79

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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.