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Finding the Fourth Proportional to 432.15, 595.11 and 409.59

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Solution

The fourth proportional to 432.15, 595.11 and 409.59 is: 564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.15 : 595.11 = 409.59 : x
  2. Step 2: Convert to fraction form
    432.15/595.11 = 409.59/x
  3. Step 3: Cross multiply
    432.15x = 595.11 × 409.59
  4. Step 4: Simplify right side
    432.15x = 243,752.64
  5. Step 5: Solve for x
    x = 243,752.64/432.15
  6. Step 6: Final answer
    x = 564.05

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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.