Home / 908,634.87-1,253,065.64-718,103.43

Finding the Fourth Proportional to 908,634.87, 1,253,065.64 and 718,103.43

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Solution

The fourth proportional to 908,634.87, 1,253,065.64 and 718,103.43 is: 990,310.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,634.87 : 1,253,065.64 = 718,103.43 : x
  2. Step 2: Convert to fraction form
    908,634.87/1,253,065.64 = 718,103.43/x
  3. Step 3: Cross multiply
    908,634.87x = 1,253,065.64 × 718,103.43
  4. Step 4: Simplify right side
    908,634.87x = 899,830,730,508.63
  5. Step 5: Solve for x
    x = 899,830,730,508.63/908,634.87
  6. Step 6: Final answer
    x = 990,310.59

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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.