Home / 547,515.39-821,130.53-231,809.79

Finding the Fourth Proportional to 547,515.39, 821,130.53 and 231,809.79

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Solution

The fourth proportional to 547,515.39, 821,130.53 and 231,809.79 is: 347,654.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,515.39 : 821,130.53 = 231,809.79 : x
  2. Step 2: Convert to fraction form
    547,515.39/821,130.53 = 231,809.79/x
  3. Step 3: Cross multiply
    547,515.39x = 821,130.53 × 231,809.79
  4. Step 4: Simplify right side
    547,515.39x = 190,346,094,562.84
  5. Step 5: Solve for x
    x = 190,346,094,562.84/547,515.39
  6. Step 6: Final answer
    x = 347,654.33

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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.