Home / 487,950.12-731,984.22-172,342.44

Finding the Fourth Proportional to 487,950.12, 731,984.22 and 172,342.44

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Solution

The fourth proportional to 487,950.12, 731,984.22 and 172,342.44 is: 258,534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,950.12 : 731,984.22 = 172,342.44 : x
  2. Step 2: Convert to fraction form
    487,950.12/731,984.22 = 172,342.44/x
  3. Step 3: Cross multiply
    487,950.12x = 731,984.22 × 172,342.44
  4. Step 4: Simplify right side
    487,950.12x = 126,151,946,516.30
  5. Step 5: Solve for x
    x = 126,151,946,516.30/487,950.12
  6. Step 6: Final answer
    x = 258,534.51

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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.