Home / 1,435,835.25-1,981,465.65-791,278.56

Finding the Fourth Proportional to 1,435,835.25, 1,981,465.65 and 791,278.56

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Solution

The fourth proportional to 1,435,835.25, 1,981,465.65 and 791,278.56 is: 1,091,971.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,835.25 : 1,981,465.65 = 791,278.56 : x
  2. Step 2: Convert to fraction form
    1,435,835.25/1,981,465.65 = 791,278.56/x
  3. Step 3: Cross multiply
    1,435,835.25x = 1,981,465.65 × 791,278.56
  4. Step 4: Simplify right side
    1,435,835.25x = 1,567,891,286,221.46
  5. Step 5: Solve for x
    x = 1,567,891,286,221.46/1,435,835.25
  6. Step 6: Final answer
    x = 1,091,971.58

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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.