Home / 728,699.27-1,093,048.95-255,384.59

Finding the Fourth Proportional to 728,699.27, 1,093,048.95 and 255,384.59

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Solution

The fourth proportional to 728,699.27, 1,093,048.95 and 255,384.59 is: 383,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,699.27 : 1,093,048.95 = 255,384.59 : x
  2. Step 2: Convert to fraction form
    728,699.27/1,093,048.95 = 255,384.59/x
  3. Step 3: Cross multiply
    728,699.27x = 1,093,048.95 × 255,384.59
  4. Step 4: Simplify right side
    728,699.27x = 279,147,857,945.68
  5. Step 5: Solve for x
    x = 279,147,857,945.68/728,699.27
  6. Step 6: Final answer
    x = 383,076.90

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.