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Finding the Fourth Proportional to 545,525.52, 752,771.40 and 303,830.64

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Solution

The fourth proportional to 545,525.52, 752,771.40 and 303,830.64 is: 419,256.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,525.52 : 752,771.40 = 303,830.64 : x
  2. Step 2: Convert to fraction form
    545,525.52/752,771.40 = 303,830.64/x
  3. Step 3: Cross multiply
    545,525.52x = 752,771.40 × 303,830.64
  4. Step 4: Simplify right side
    545,525.52x = 228,715,016,235.70
  5. Step 5: Solve for x
    x = 228,715,016,235.70/545,525.52
  6. Step 6: Final answer
    x = 419,256.31

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Double scale
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Similar ratio
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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.