Home / 835,138.72-1,252,591.44-355,558.80

Finding the Fourth Proportional to 835,138.72, 1,252,591.44 and 355,558.80

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Solution

The fourth proportional to 835,138.72, 1,252,591.44 and 355,558.80 is: 533,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,138.72 : 1,252,591.44 = 355,558.80 : x
  2. Step 2: Convert to fraction form
    835,138.72/1,252,591.44 = 355,558.80/x
  3. Step 3: Cross multiply
    835,138.72x = 1,252,591.44 × 355,558.80
  4. Step 4: Simplify right side
    835,138.72x = 445,369,909,296.67
  5. Step 5: Solve for x
    x = 445,369,909,296.67/835,138.72
  6. Step 6: Final answer
    x = 533,288.54

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Double scale
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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.