Home / 1,291,835.93-1,782,929.50-775,874.72

Finding the Fourth Proportional to 1,291,835.93, 1,782,929.50 and 775,874.72

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Solution

The fourth proportional to 1,291,835.93, 1,782,929.50 and 775,874.72 is: 1,070,824.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,835.93 : 1,782,929.50 = 775,874.72 : x
  2. Step 2: Convert to fraction form
    1,291,835.93/1,782,929.50 = 775,874.72/x
  3. Step 3: Cross multiply
    1,291,835.93x = 1,782,929.50 × 775,874.72
  4. Step 4: Simplify right side
    1,291,835.93x = 1,383,329,929,109.88
  5. Step 5: Solve for x
    x = 1,383,329,929,109.88/1,291,835.93
  6. Step 6: Final answer
    x = 1,070,824.79

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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.