Home / 1,435,775.79-1,981,374.21-782,406.81

Finding the Fourth Proportional to 1,435,775.79, 1,981,374.21 and 782,406.81

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Solution

The fourth proportional to 1,435,775.79, 1,981,374.21 and 782,406.81 is: 1,079,723.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,775.79 : 1,981,374.21 = 782,406.81 : x
  2. Step 2: Convert to fraction form
    1,435,775.79/1,981,374.21 = 782,406.81/x
  3. Step 3: Cross multiply
    1,435,775.79x = 1,981,374.21 × 782,406.81
  4. Step 4: Simplify right side
    1,435,775.79x = 1,550,240,675,062.37
  5. Step 5: Solve for x
    x = 1,550,240,675,062.37/1,435,775.79
  6. Step 6: Final answer
    x = 1,079,723.37

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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.