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Finding the Fourth Proportional to 545,320.51, 752,540.70 and 303,596.88

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Solution

The fourth proportional to 545,320.51, 752,540.70 and 303,596.88 is: 418,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,320.51 : 752,540.70 = 303,596.88 : x
  2. Step 2: Convert to fraction form
    545,320.51/752,540.70 = 303,596.88/x
  3. Step 3: Cross multiply
    545,320.51x = 752,540.70 × 303,596.88
  4. Step 4: Simplify right side
    545,320.51x = 228,469,008,593.02
  5. Step 5: Solve for x
    x = 228,469,008,593.02/545,320.51
  6. Step 6: Final answer
    x = 418,962.80

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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.