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Finding the Fourth Proportional to 590.75, 885.28 and 435.46

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Solution

The fourth proportional to 590.75, 885.28 and 435.46 is: 652.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.75 : 885.28 = 435.46 : x
  2. Step 2: Convert to fraction form
    590.75/885.28 = 435.46/x
  3. Step 3: Cross multiply
    590.75x = 885.28 × 435.46
  4. Step 4: Simplify right side
    590.75x = 385,499.60
  5. Step 5: Solve for x
    x = 385,499.60/590.75
  6. Step 6: Final answer
    x = 652.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.