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Finding the Fourth Proportional to 545,296.50, 818,109.99 and 279,245.52

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Solution

The fourth proportional to 545,296.50, 818,109.99 and 279,245.52 is: 418,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,296.50 : 818,109.99 = 279,245.52 : x
  2. Step 2: Convert to fraction form
    545,296.50/818,109.99 = 279,245.52/x
  3. Step 3: Cross multiply
    545,296.50x = 818,109.99 × 279,245.52
  4. Step 4: Simplify right side
    545,296.50x = 228,453,549,574.75
  5. Step 5: Solve for x
    x = 228,453,549,574.75/545,296.50
  6. Step 6: Final answer
    x = 418,952.90

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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.