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Finding the Fourth Proportional to 545,861.63, 753,294.11 and 300,855.12

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Solution

The fourth proportional to 545,861.63, 753,294.11 and 300,855.12 is: 415,182.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,861.63 : 753,294.11 = 300,855.12 : x
  2. Step 2: Convert to fraction form
    545,861.63/753,294.11 = 300,855.12/x
  3. Step 3: Cross multiply
    545,861.63x = 753,294.11 × 300,855.12
  4. Step 4: Simplify right side
    545,861.63x = 226,632,388,355.07
  5. Step 5: Solve for x
    x = 226,632,388,355.07/545,861.63
  6. Step 6: Final answer
    x = 415,182.86

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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.