Home / 571,429.65-857,315.79-172,083.45

Finding the Fourth Proportional to 571,429.65, 857,315.79 and 172,083.45

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Solution

The fourth proportional to 571,429.65, 857,315.79 and 172,083.45 is: 258,176.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,429.65 : 857,315.79 = 172,083.45 : x
  2. Step 2: Convert to fraction form
    571,429.65/857,315.79 = 172,083.45/x
  3. Step 3: Cross multiply
    571,429.65x = 857,315.79 × 172,083.45
  4. Step 4: Simplify right side
    571,429.65x = 147,529,858,882.68
  5. Step 5: Solve for x
    x = 147,529,858,882.68/571,429.65
  6. Step 6: Final answer
    x = 258,176.77

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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.