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Finding the Fourth Proportional to 582.62, 872.11 and 435.50

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Solution

The fourth proportional to 582.62, 872.11 and 435.50 is: 651.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.62 : 872.11 = 435.50 : x
  2. Step 2: Convert to fraction form
    582.62/872.11 = 435.50/x
  3. Step 3: Cross multiply
    582.62x = 872.11 × 435.50
  4. Step 4: Simplify right side
    582.62x = 379,802.81
  5. Step 5: Solve for x
    x = 379,802.81/582.62
  6. Step 6: Final answer
    x = 651.89

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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.