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Finding the Fourth Proportional to 581.13, 802.76 and 471.96

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Solution

The fourth proportional to 581.13, 802.76 and 471.96 is: 651.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.13 : 802.76 = 471.96 : x
  2. Step 2: Convert to fraction form
    581.13/802.76 = 471.96/x
  3. Step 3: Cross multiply
    581.13x = 802.76 × 471.96
  4. Step 4: Simplify right side
    581.13x = 378,868.25
  5. Step 5: Solve for x
    x = 378,868.25/581.13
  6. Step 6: Final answer
    x = 651.95

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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.