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Finding the Fourth Proportional to 586.63, 809.08 and 400.33

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Solution

The fourth proportional to 586.63, 809.08 and 400.33 is: 552.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.63 : 809.08 = 400.33 : x
  2. Step 2: Convert to fraction form
    586.63/809.08 = 400.33/x
  3. Step 3: Cross multiply
    586.63x = 809.08 × 400.33
  4. Step 4: Simplify right side
    586.63x = 323,899.00
  5. Step 5: Solve for x
    x = 323,899.00/586.63
  6. Step 6: Final answer
    x = 552.14

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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.