Home / 815,691.09-1,125,622.40-453,137.77

Finding the Fourth Proportional to 815,691.09, 1,125,622.40 and 453,137.77

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Solution

The fourth proportional to 815,691.09, 1,125,622.40 and 453,137.77 is: 625,312.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,691.09 : 1,125,622.40 = 453,137.77 : x
  2. Step 2: Convert to fraction form
    815,691.09/1,125,622.40 = 453,137.77/x
  3. Step 3: Cross multiply
    815,691.09x = 1,125,622.40 × 453,137.77
  4. Step 4: Simplify right side
    815,691.09x = 510,062,024,198.05
  5. Step 5: Solve for x
    x = 510,062,024,198.05/815,691.09
  6. Step 6: Final answer
    x = 625,312.73

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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.