Home / 1,110,658.40-1,665,814.80-311,861.60

Finding the Fourth Proportional to 1,110,658.40, 1,665,814.80 and 311,861.60

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Solution

The fourth proportional to 1,110,658.40, 1,665,814.80 and 311,861.60 is: 467,743.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,658.40 : 1,665,814.80 = 311,861.60 : x
  2. Step 2: Convert to fraction form
    1,110,658.40/1,665,814.80 = 311,861.60/x
  3. Step 3: Cross multiply
    1,110,658.40x = 1,665,814.80 × 311,861.60
  4. Step 4: Simplify right side
    1,110,658.40x = 519,503,668,831.68
  5. Step 5: Solve for x
    x = 519,503,668,831.68/1,110,658.40
  6. Step 6: Final answer
    x = 467,743.88

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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.