Home / 406,420.23-609,819.49-181,932.54

Finding the Fourth Proportional to 406,420.23, 609,819.49 and 181,932.54

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Solution

The fourth proportional to 406,420.23, 609,819.49 and 181,932.54 is: 272,983.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,420.23 : 609,819.49 = 181,932.54 : x
  2. Step 2: Convert to fraction form
    406,420.23/609,819.49 = 181,932.54/x
  3. Step 3: Cross multiply
    406,420.23x = 609,819.49 × 181,932.54
  4. Step 4: Simplify right side
    406,420.23x = 110,946,011,113.51
  5. Step 5: Solve for x
    x = 110,946,011,113.51/406,420.23
  6. Step 6: Final answer
    x = 272,983.48

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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.