Home / 1,435,747.76-1,981,306.48-782,379.55

Finding the Fourth Proportional to 1,435,747.76, 1,981,306.48 and 782,379.55

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Solution

The fourth proportional to 1,435,747.76, 1,981,306.48 and 782,379.55 is: 1,079,669.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,747.76 : 1,981,306.48 = 782,379.55 : x
  2. Step 2: Convert to fraction form
    1,435,747.76/1,981,306.48 = 782,379.55/x
  3. Step 3: Cross multiply
    1,435,747.76x = 1,981,306.48 × 782,379.55
  4. Step 4: Simplify right side
    1,435,747.76x = 1,550,133,673,379.18
  5. Step 5: Solve for x
    x = 1,550,133,673,379.18/1,435,747.76
  6. Step 6: Final answer
    x = 1,079,669.93

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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.