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Finding the Fourth Proportional to 406,459.55, 561,007.49 and 270,499.23

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Solution

The fourth proportional to 406,459.55, 561,007.49 and 270,499.23 is: 373,351.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,459.55 : 561,007.49 = 270,499.23 : x
  2. Step 2: Convert to fraction form
    406,459.55/561,007.49 = 270,499.23/x
  3. Step 3: Cross multiply
    406,459.55x = 561,007.49 × 270,499.23
  4. Step 4: Simplify right side
    406,459.55x = 151,752,092,716.74
  5. Step 5: Solve for x
    x = 151,752,092,716.74/406,459.55
  6. Step 6: Final answer
    x = 373,351.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.