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Finding the Fourth Proportional to 406,604.40, 561,312.36 and 270,718.80

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Solution

The fourth proportional to 406,604.40, 561,312.36 and 270,718.80 is: 373,723.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,604.40 : 561,312.36 = 270,718.80 : x
  2. Step 2: Convert to fraction form
    406,604.40/561,312.36 = 270,718.80/x
  3. Step 3: Cross multiply
    406,604.40x = 561,312.36 × 270,718.80
  4. Step 4: Simplify right side
    406,604.40x = 151,957,808,524.37
  5. Step 5: Solve for x
    x = 151,957,808,524.37/406,604.40
  6. Step 6: Final answer
    x = 373,723.96

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