Home / 815,302.94-1,125,221.82-493,015.37

Finding the Fourth Proportional to 815,302.94, 1,125,221.82 and 493,015.37

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Solution

The fourth proportional to 815,302.94, 1,125,221.82 and 493,015.37 is: 680,423.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,302.94 : 1,125,221.82 = 493,015.37 : x
  2. Step 2: Convert to fraction form
    815,302.94/1,125,221.82 = 493,015.37/x
  3. Step 3: Cross multiply
    815,302.94x = 1,125,221.82 × 493,015.37
  4. Step 4: Simplify right side
    815,302.94x = 554,751,651,919.37
  5. Step 5: Solve for x
    x = 554,751,651,919.37/815,302.94
  6. Step 6: Final answer
    x = 680,423.96

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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.