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Finding the Fourth Proportional to 406,423.56, 609,536.88 and 169,637.88

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Solution

The fourth proportional to 406,423.56, 609,536.88 and 169,637.88 is: 254,415.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,423.56 : 609,536.88 = 169,637.88 : x
  2. Step 2: Convert to fraction form
    406,423.56/609,536.88 = 169,637.88/x
  3. Step 3: Cross multiply
    406,423.56x = 609,536.88 × 169,637.88
  4. Step 4: Simplify right side
    406,423.56x = 103,400,544,105.01
  5. Step 5: Solve for x
    x = 103,400,544,105.01/406,423.56
  6. Step 6: Final answer
    x = 254,415.72

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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.