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Finding the Fourth Proportional to 590.16, 813.24 and 434.64

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Solution

The fourth proportional to 590.16, 813.24 and 434.64 is: 598.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.16 : 813.24 = 434.64 : x
  2. Step 2: Convert to fraction form
    590.16/813.24 = 434.64/x
  3. Step 3: Cross multiply
    590.16x = 813.24 × 434.64
  4. Step 4: Simplify right side
    590.16x = 353,466.63
  5. Step 5: Solve for x
    x = 353,466.63/590.16
  6. Step 6: Final answer
    x = 598.93

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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.