Home / 728,880.10-1,093,320.15-255,613.30

Finding the Fourth Proportional to 728,880.10, 1,093,320.15 and 255,613.30

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Solution

The fourth proportional to 728,880.10, 1,093,320.15 and 255,613.30 is: 383,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,880.10 : 1,093,320.15 = 255,613.30 : x
  2. Step 2: Convert to fraction form
    728,880.10/1,093,320.15 = 255,613.30/x
  3. Step 3: Cross multiply
    728,880.10x = 1,093,320.15 × 255,613.30
  4. Step 4: Simplify right side
    728,880.10x = 279,467,171,498.00
  5. Step 5: Solve for x
    x = 279,467,171,498.00/728,880.10
  6. Step 6: Final answer
    x = 383,419.95

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Double scale
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Similar ratio
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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.