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Finding the Fourth Proportional to 519.41, 715.23 and 430.62

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Solution

The fourth proportional to 519.41, 715.23 and 430.62 is: 592.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.41 : 715.23 = 430.62 : x
  2. Step 2: Convert to fraction form
    519.41/715.23 = 430.62/x
  3. Step 3: Cross multiply
    519.41x = 715.23 × 430.62
  4. Step 4: Simplify right side
    519.41x = 307,989.66
  5. Step 5: Solve for x
    x = 307,989.66/519.41
  6. Step 6: Final answer
    x = 592.96

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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.