Home / 738,879.82-1,108,330.68-487,768.48

Finding the Fourth Proportional to 738,879.82, 1,108,330.68 and 487,768.48

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Solution

The fourth proportional to 738,879.82, 1,108,330.68 and 487,768.48 is: 731,659.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,879.82 : 1,108,330.68 = 487,768.48 : x
  2. Step 2: Convert to fraction form
    738,879.82/1,108,330.68 = 487,768.48/x
  3. Step 3: Cross multiply
    738,879.82x = 1,108,330.68 × 487,768.48
  4. Step 4: Simplify right side
    738,879.82x = 540,608,771,120.97
  5. Step 5: Solve for x
    x = 540,608,771,120.97/738,879.82
  6. Step 6: Final answer
    x = 731,659.95

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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.