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Finding the Fourth Proportional to 587,727.86, 811,007.76 and 329,615.28

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Solution

The fourth proportional to 587,727.86, 811,007.76 and 329,615.28 is: 454,837.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,727.86 : 811,007.76 = 329,615.28 : x
  2. Step 2: Convert to fraction form
    587,727.86/811,007.76 = 329,615.28/x
  3. Step 3: Cross multiply
    587,727.86x = 811,007.76 × 329,615.28
  4. Step 4: Simplify right side
    587,727.86x = 267,320,549,894.57
  5. Step 5: Solve for x
    x = 267,320,549,894.57/587,727.86
  6. Step 6: Final answer
    x = 454,837.29

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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.