Home / 1,119,145.86-1,678,224.96-320,245.56

Finding the Fourth Proportional to 1,119,145.86, 1,678,224.96 and 320,245.56

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Solution

The fourth proportional to 1,119,145.86, 1,678,224.96 and 320,245.56 is: 480,227.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,145.86 : 1,678,224.96 = 320,245.56 : x
  2. Step 2: Convert to fraction form
    1,119,145.86/1,678,224.96 = 320,245.56/x
  3. Step 3: Cross multiply
    1,119,145.86x = 1,678,224.96 × 320,245.56
  4. Step 4: Simplify right side
    1,119,145.86x = 537,444,092,121.18
  5. Step 5: Solve for x
    x = 537,444,092,121.18/1,119,145.86
  6. Step 6: Final answer
    x = 480,227.03

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Double scale
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1.5x scale

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.