Home / 815,100.59-1,222,257.63-341,658.83

Finding the Fourth Proportional to 815,100.59, 1,222,257.63 and 341,658.83

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Solution

The fourth proportional to 815,100.59, 1,222,257.63 and 341,658.83 is: 512,323.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,100.59 : 1,222,257.63 = 341,658.83 : x
  2. Step 2: Convert to fraction form
    815,100.59/1,222,257.63 = 341,658.83/x
  3. Step 3: Cross multiply
    815,100.59x = 1,222,257.63 × 341,658.83
  4. Step 4: Simplify right side
    815,100.59x = 417,595,111,824.37
  5. Step 5: Solve for x
    x = 417,595,111,824.37/815,100.59
  6. Step 6: Final answer
    x = 512,323.41

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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.