Home / 695,919.78-1,043,499.78-209,530.98

Finding the Fourth Proportional to 695,919.78, 1,043,499.78 and 209,530.98

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Solution

The fourth proportional to 695,919.78, 1,043,499.78 and 209,530.98 is: 314,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,919.78 : 1,043,499.78 = 209,530.98 : x
  2. Step 2: Convert to fraction form
    695,919.78/1,043,499.78 = 209,530.98/x
  3. Step 3: Cross multiply
    695,919.78x = 1,043,499.78 × 209,530.98
  4. Step 4: Simplify right side
    695,919.78x = 218,645,531,533.18
  5. Step 5: Solve for x
    x = 218,645,531,533.18/695,919.78
  6. Step 6: Final answer
    x = 314,182.09

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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.