Home / 815,699.88-1,125,634.54-453,146.54

Finding the Fourth Proportional to 815,699.88, 1,125,634.54 and 453,146.54

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Solution

The fourth proportional to 815,699.88, 1,125,634.54 and 453,146.54 is: 625,324.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,699.88 : 1,125,634.54 = 453,146.54 : x
  2. Step 2: Convert to fraction form
    815,699.88/1,125,634.54 = 453,146.54/x
  3. Step 3: Cross multiply
    815,699.88x = 1,125,634.54 × 453,146.54
  4. Step 4: Simplify right side
    815,699.88x = 510,077,397,105.49
  5. Step 5: Solve for x
    x = 510,077,397,105.49/815,699.88
  6. Step 6: Final answer
    x = 625,324.84

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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.