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Finding the Fourth Proportional to 545,692.57, 752,955.81 and 303,969.13

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Solution

The fourth proportional to 545,692.57, 752,955.81 and 303,969.13 is: 419,421.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,692.57 : 752,955.81 = 303,969.13 : x
  2. Step 2: Convert to fraction form
    545,692.57/752,955.81 = 303,969.13/x
  3. Step 3: Cross multiply
    545,692.57x = 752,955.81 × 303,969.13
  4. Step 4: Simplify right side
    545,692.57x = 228,875,322,494.15
  5. Step 5: Solve for x
    x = 228,875,322,494.15/545,692.57
  6. Step 6: Final answer
    x = 419,421.73

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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.