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Finding the Fourth Proportional to 582.48, 802.44 and 482.28

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Solution

The fourth proportional to 582.48, 802.44 and 482.28 is: 664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.48 : 802.44 = 482.28 : x
  2. Step 2: Convert to fraction form
    582.48/802.44 = 482.28/x
  3. Step 3: Cross multiply
    582.48x = 802.44 × 482.28
  4. Step 4: Simplify right side
    582.48x = 387,000.76
  5. Step 5: Solve for x
    x = 387,000.76/582.48
  6. Step 6: Final answer
    x = 664.40

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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.