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Finding the Fourth Proportional to 406,459.52, 609,404.16 and 219,593.60

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Solution

The fourth proportional to 406,459.52, 609,404.16 and 219,593.60 is: 329,236.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,459.52 : 609,404.16 = 219,593.60 : x
  2. Step 2: Convert to fraction form
    406,459.52/609,404.16 = 219,593.60/x
  3. Step 3: Cross multiply
    406,459.52x = 609,404.16 × 219,593.60
  4. Step 4: Simplify right side
    406,459.52x = 133,821,253,349.38
  5. Step 5: Solve for x
    x = 133,821,253,349.38/406,459.52
  6. Step 6: Final answer
    x = 329,236.36

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1.5x scale

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.