Home / 1,291,834.31-1,782,704.87-808,665.86

Finding the Fourth Proportional to 1,291,834.31, 1,782,704.87 and 808,665.86

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Solution

The fourth proportional to 1,291,834.31, 1,782,704.87 and 808,665.86 is: 1,115,942.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,834.31 : 1,782,704.87 = 808,665.86 : x
  2. Step 2: Convert to fraction form
    1,291,834.31/1,782,704.87 = 808,665.86/x
  3. Step 3: Cross multiply
    1,291,834.31x = 1,782,704.87 × 808,665.86
  4. Step 4: Simplify right side
    1,291,834.31x = 1,441,612,570,270.67
  5. Step 5: Solve for x
    x = 1,441,612,570,270.67/1,291,834.31
  6. Step 6: Final answer
    x = 1,115,942.32

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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.