Home / 577,112.38-865,712.09-172,272.62

Finding the Fourth Proportional to 577,112.38, 865,712.09 and 172,272.62

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Solution

The fourth proportional to 577,112.38, 865,712.09 and 172,272.62 is: 258,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,112.38 : 865,712.09 = 172,272.62 : x
  2. Step 2: Convert to fraction form
    577,112.38/865,712.09 = 172,272.62/x
  3. Step 3: Cross multiply
    577,112.38x = 865,712.09 × 172,272.62
  4. Step 4: Simplify right side
    577,112.38x = 149,138,492,504.94
  5. Step 5: Solve for x
    x = 149,138,492,504.94/577,112.38
  6. Step 6: Final answer
    x = 258,421.93

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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.