Home / 379,365.27-523,534.70-209,610.39

Finding the Fourth Proportional to 379,365.27, 523,534.70 and 209,610.39

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Solution

The fourth proportional to 379,365.27, 523,534.70 and 209,610.39 is: 289,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,365.27 : 523,534.70 = 209,610.39 : x
  2. Step 2: Convert to fraction form
    379,365.27/523,534.70 = 209,610.39/x
  3. Step 3: Cross multiply
    379,365.27x = 523,534.70 × 209,610.39
  4. Step 4: Simplify right side
    379,365.27x = 109,738,311,597.48
  5. Step 5: Solve for x
    x = 109,738,311,597.48/379,365.27
  6. Step 6: Final answer
    x = 289,268.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.