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Finding the Fourth Proportional to 806.16, 1,210.00 and 498.62

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Solution

The fourth proportional to 806.16, 1,210.00 and 498.62 is: 748.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    806.16 : 1,210.00 = 498.62 : x
  2. Step 2: Convert to fraction form
    806.16/1,210.00 = 498.62/x
  3. Step 3: Cross multiply
    806.16x = 1,210.00 × 498.62
  4. Step 4: Simplify right side
    806.16x = 603,327.98
  5. Step 5: Solve for x
    x = 603,327.98/806.16
  6. Step 6: Final answer
    x = 748.39

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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.