Home / 1,119,810.62-1,679,221.77-320,910.86

Finding the Fourth Proportional to 1,119,810.62, 1,679,221.77 and 320,910.86

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Solution

The fourth proportional to 1,119,810.62, 1,679,221.77 and 320,910.86 is: 481,224.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,810.62 : 1,679,221.77 = 320,910.86 : x
  2. Step 2: Convert to fraction form
    1,119,810.62/1,679,221.77 = 320,910.86/x
  3. Step 3: Cross multiply
    1,119,810.62x = 1,679,221.77 × 320,910.86
  4. Step 4: Simplify right side
    1,119,810.62x = 538,880,502,341.42
  5. Step 5: Solve for x
    x = 538,880,502,341.42/1,119,810.62
  6. Step 6: Final answer
    x = 481,224.68

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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.