Home / 827,876.70-1,142,671.05-505,857.96

Finding the Fourth Proportional to 827,876.70, 1,142,671.05 and 505,857.96

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Solution

The fourth proportional to 827,876.70, 1,142,671.05 and 505,857.96 is: 698,206.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,876.70 : 1,142,671.05 = 505,857.96 : x
  2. Step 2: Convert to fraction form
    827,876.70/1,142,671.05 = 505,857.96/x
  3. Step 3: Cross multiply
    827,876.70x = 1,142,671.05 × 505,857.96
  4. Step 4: Simplify right side
    827,876.70x = 578,029,246,304.06
  5. Step 5: Solve for x
    x = 578,029,246,304.06/827,876.70
  6. Step 6: Final answer
    x = 698,206.93

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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.