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Finding the Fourth Proportional to 545,072.76, 752,200.41 and 303,412.42

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Solution

The fourth proportional to 545,072.76, 752,200.41 and 303,412.42 is: 418,709.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,072.76 : 752,200.41 = 303,412.42 : x
  2. Step 2: Convert to fraction form
    545,072.76/752,200.41 = 303,412.42/x
  3. Step 3: Cross multiply
    545,072.76x = 752,200.41 × 303,412.42
  4. Step 4: Simplify right side
    545,072.76x = 228,226,945,206.03
  5. Step 5: Solve for x
    x = 228,226,945,206.03/545,072.76
  6. Step 6: Final answer
    x = 418,709.14

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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.