Home / 728,958.98-1,093,448.28-255,658.16

Finding the Fourth Proportional to 728,958.98, 1,093,448.28 and 255,658.16

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Solution

The fourth proportional to 728,958.98, 1,093,448.28 and 255,658.16 is: 383,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,958.98 : 1,093,448.28 = 255,658.16 : x
  2. Step 2: Convert to fraction form
    728,958.98/1,093,448.28 = 255,658.16/x
  3. Step 3: Cross multiply
    728,958.98x = 1,093,448.28 × 255,658.16
  4. Step 4: Simplify right side
    728,958.98x = 279,548,975,319.97
  5. Step 5: Solve for x
    x = 279,548,975,319.97/728,958.98
  6. Step 6: Final answer
    x = 383,490.68

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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.