Home / 1,347,564.60-2,021,346.90-1,320,992.55

Finding the Fourth Proportional to 1,347,564.60, 2,021,346.90 and 1,320,992.55

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Solution

The fourth proportional to 1,347,564.60, 2,021,346.90 and 1,320,992.55 is: 1,981,488.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,564.60 : 2,021,346.90 = 1,320,992.55 : x
  2. Step 2: Convert to fraction form
    1,347,564.60/2,021,346.90 = 1,320,992.55/x
  3. Step 3: Cross multiply
    1,347,564.60x = 2,021,346.90 × 1,320,992.55
  4. Step 4: Simplify right side
    1,347,564.60x = 2,670,184,195,865.60
  5. Step 5: Solve for x
    x = 2,670,184,195,865.60/1,347,564.60
  6. Step 6: Final answer
    x = 1,981,488.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.