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Finding the Fourth Proportional to 580,169.28, 800,668.89 and 386,242.32

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Solution

The fourth proportional to 580,169.28, 800,668.89 and 386,242.32 is: 533,037.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,169.28 : 800,668.89 = 386,242.32 : x
  2. Step 2: Convert to fraction form
    580,169.28/800,668.89 = 386,242.32/x
  3. Step 3: Cross multiply
    580,169.28x = 800,668.89 × 386,242.32
  4. Step 4: Simplify right side
    580,169.28x = 309,252,209,625.43
  5. Step 5: Solve for x
    x = 309,252,209,625.43/580,169.28
  6. Step 6: Final answer
    x = 533,037.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.