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Finding the Fourth Proportional to 548,861.78, 757,417.24 and 300,503.23

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Solution

The fourth proportional to 548,861.78, 757,417.24 and 300,503.23 is: 414,687.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,861.78 : 757,417.24 = 300,503.23 : x
  2. Step 2: Convert to fraction form
    548,861.78/757,417.24 = 300,503.23/x
  3. Step 3: Cross multiply
    548,861.78x = 757,417.24 × 300,503.23
  4. Step 4: Simplify right side
    548,861.78x = 227,606,327,077.69
  5. Step 5: Solve for x
    x = 227,606,327,077.69/548,861.78
  6. Step 6: Final answer
    x = 414,687.88

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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.