Home / 985,668.67-1,478,685.26-311,919.58

Finding the Fourth Proportional to 985,668.67, 1,478,685.26 and 311,919.58

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Solution

The fourth proportional to 985,668.67, 1,478,685.26 and 311,919.58 is: 467,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,668.67 : 1,478,685.26 = 311,919.58 : x
  2. Step 2: Convert to fraction form
    985,668.67/1,478,685.26 = 311,919.58/x
  3. Step 3: Cross multiply
    985,668.67x = 1,478,685.26 × 311,919.58
  4. Step 4: Simplify right side
    985,668.67x = 461,230,885,251.39
  5. Step 5: Solve for x
    x = 461,230,885,251.39/985,668.67
  6. Step 6: Final answer
    x = 467,937.05

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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.