Home / 687,057.72-1,029,535.54-367,255.08

Finding the Fourth Proportional to 687,057.72, 1,029,535.54 and 367,255.08

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Solution

The fourth proportional to 687,057.72, 1,029,535.54 and 367,255.08 is: 550,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,057.72 : 1,029,535.54 = 367,255.08 : x
  2. Step 2: Convert to fraction form
    687,057.72/1,029,535.54 = 367,255.08/x
  3. Step 3: Cross multiply
    687,057.72x = 1,029,535.54 × 367,255.08
  4. Step 4: Simplify right side
    687,057.72x = 378,102,157,105.54
  5. Step 5: Solve for x
    x = 378,102,157,105.54/687,057.72
  6. Step 6: Final answer
    x = 550,320.80

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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.