Home / 571,918.72-857,320.26-272,318.80

Finding the Fourth Proportional to 571,918.72, 857,320.26 and 272,318.80

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Solution

The fourth proportional to 571,918.72, 857,320.26 and 272,318.80 is: 408,212.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,918.72 : 857,320.26 = 272,318.80 : x
  2. Step 2: Convert to fraction form
    571,918.72/857,320.26 = 272,318.80/x
  3. Step 3: Cross multiply
    571,918.72x = 857,320.26 × 272,318.80
  4. Step 4: Simplify right side
    571,918.72x = 233,464,424,418.89
  5. Step 5: Solve for x
    x = 233,464,424,418.89/571,918.72
  6. Step 6: Final answer
    x = 408,212.59

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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.