Home / 567,218.80-782,767.14-312,579.04

Finding the Fourth Proportional to 567,218.80, 782,767.14 and 312,579.04

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Solution

The fourth proportional to 567,218.80, 782,767.14 and 312,579.04 is: 431,361.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,218.80 : 782,767.14 = 312,579.04 : x
  2. Step 2: Convert to fraction form
    567,218.80/782,767.14 = 312,579.04/x
  3. Step 3: Cross multiply
    567,218.80x = 782,767.14 × 312,579.04
  4. Step 4: Simplify right side
    567,218.80x = 244,676,601,164.75
  5. Step 5: Solve for x
    x = 244,676,601,164.75/567,218.80
  6. Step 6: Final answer
    x = 431,361.94

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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.