Home / 1,285,136.48-1,772,917.61-826,165.85

Finding the Fourth Proportional to 1,285,136.48, 1,772,917.61 and 826,165.85

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Solution

The fourth proportional to 1,285,136.48, 1,772,917.61 and 826,165.85 is: 1,139,741.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,136.48 : 1,772,917.61 = 826,165.85 : x
  2. Step 2: Convert to fraction form
    1,285,136.48/1,772,917.61 = 826,165.85/x
  3. Step 3: Cross multiply
    1,285,136.48x = 1,772,917.61 × 826,165.85
  4. Step 4: Simplify right side
    1,285,136.48x = 1,464,723,971,250.20
  5. Step 5: Solve for x
    x = 1,464,723,971,250.20/1,285,136.48
  6. Step 6: Final answer
    x = 1,139,741.96

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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.