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Finding the Fourth Proportional to 545,914.28, 753,366.64 and 300,885.60

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Solution

The fourth proportional to 545,914.28, 753,366.64 and 300,885.60 is: 415,224.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,914.28 : 753,366.64 = 300,885.60 : x
  2. Step 2: Convert to fraction form
    545,914.28/753,366.64 = 300,885.60/x
  3. Step 3: Cross multiply
    545,914.28x = 753,366.64 × 300,885.60
  4. Step 4: Simplify right side
    545,914.28x = 226,677,173,496.38
  5. Step 5: Solve for x
    x = 226,677,173,496.38/545,914.28
  6. Step 6: Final answer
    x = 415,224.85

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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.