Home / 1,435,749.76-1,981,309.25-782,381.54

Finding the Fourth Proportional to 1,435,749.76, 1,981,309.25 and 782,381.54

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Solution

The fourth proportional to 1,435,749.76, 1,981,309.25 and 782,381.54 is: 1,079,672.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,749.76 : 1,981,309.25 = 782,381.54 : x
  2. Step 2: Convert to fraction form
    1,435,749.76/1,981,309.25 = 782,381.54/x
  3. Step 3: Cross multiply
    1,435,749.76x = 1,981,309.25 × 782,381.54
  4. Step 4: Simplify right side
    1,435,749.76x = 1,550,139,793,026.87
  5. Step 5: Solve for x
    x = 1,550,139,793,026.87/1,435,749.76
  6. Step 6: Final answer
    x = 1,079,672.68

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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.