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Finding the Fourth Proportional to 545,087.56, 752,242.56 and 303,380.32

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Solution

The fourth proportional to 545,087.56, 752,242.56 and 303,380.32 is: 418,676.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,087.56 : 752,242.56 = 303,380.32 : x
  2. Step 2: Convert to fraction form
    545,087.56/752,242.56 = 303,380.32/x
  3. Step 3: Cross multiply
    545,087.56x = 752,242.56 × 303,380.32
  4. Step 4: Simplify right side
    545,087.56x = 228,215,588,570.42
  5. Step 5: Solve for x
    x = 228,215,588,570.42/545,087.56
  6. Step 6: Final answer
    x = 418,676.93

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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.