Home / 919,974.27-1,380,016.77-288,888.09

Finding the Fourth Proportional to 919,974.27, 1,380,016.77 and 288,888.09

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Solution

The fourth proportional to 919,974.27, 1,380,016.77 and 288,888.09 is: 433,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,974.27 : 1,380,016.77 = 288,888.09 : x
  2. Step 2: Convert to fraction form
    919,974.27/1,380,016.77 = 288,888.09/x
  3. Step 3: Cross multiply
    919,974.27x = 1,380,016.77 × 288,888.09
  4. Step 4: Simplify right side
    919,974.27x = 398,670,403,407.37
  5. Step 5: Solve for x
    x = 398,670,403,407.37/919,974.27
  6. Step 6: Final answer
    x = 433,349.51

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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.