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Finding the Fourth Proportional to 595.26, 820.35 and 429.18

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Solution

The fourth proportional to 595.26, 820.35 and 429.18 is: 591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.26 : 820.35 = 429.18 : x
  2. Step 2: Convert to fraction form
    595.26/820.35 = 429.18/x
  3. Step 3: Cross multiply
    595.26x = 820.35 × 429.18
  4. Step 4: Simplify right side
    595.26x = 352,077.81
  5. Step 5: Solve for x
    x = 352,077.81/595.26
  6. Step 6: Final answer
    x = 591.47

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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.