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Finding the Fourth Proportional to 545,205.60, 752,405.90 and 303,472.80

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Solution

The fourth proportional to 545,205.60, 752,405.90 and 303,472.80 is: 418,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,205.60 : 752,405.90 = 303,472.80 : x
  2. Step 2: Convert to fraction form
    545,205.60/752,405.90 = 303,472.80/x
  3. Step 3: Cross multiply
    545,205.60x = 752,405.90 × 303,472.80
  4. Step 4: Simplify right side
    545,205.60x = 228,334,723,692.16
  5. Step 5: Solve for x
    x = 228,334,723,692.16/545,205.60
  6. Step 6: Final answer
    x = 418,804.80

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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.