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Finding the Fourth Proportional to 581.72, 800.70 and 482.36

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Solution

The fourth proportional to 581.72, 800.70 and 482.36 is: 663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.72 : 800.70 = 482.36 : x
  2. Step 2: Convert to fraction form
    581.72/800.70 = 482.36/x
  3. Step 3: Cross multiply
    581.72x = 800.70 × 482.36
  4. Step 4: Simplify right side
    581.72x = 386,225.65
  5. Step 5: Solve for x
    x = 386,225.65/581.72
  6. Step 6: Final answer
    x = 663.94

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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.