Home / 715,349.88-1,073,190.78-209,890.44

Finding the Fourth Proportional to 715,349.88, 1,073,190.78 and 209,890.44

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Solution

The fourth proportional to 715,349.88, 1,073,190.78 and 209,890.44 is: 314,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,349.88 : 1,073,190.78 = 209,890.44 : x
  2. Step 2: Convert to fraction form
    715,349.88/1,073,190.78 = 209,890.44/x
  3. Step 3: Cross multiply
    715,349.88x = 1,073,190.78 × 209,890.44
  4. Step 4: Simplify right side
    715,349.88x = 225,252,485,018.14
  5. Step 5: Solve for x
    x = 225,252,485,018.14/715,349.88
  6. Step 6: Final answer
    x = 314,884.35

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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.