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Finding the Fourth Proportional to 656.22, 906.36 and 603.57

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Solution

The fourth proportional to 656.22, 906.36 and 603.57 is: 833.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.22 : 906.36 = 603.57 : x
  2. Step 2: Convert to fraction form
    656.22/906.36 = 603.57/x
  3. Step 3: Cross multiply
    656.22x = 906.36 × 603.57
  4. Step 4: Simplify right side
    656.22x = 547,051.71
  5. Step 5: Solve for x
    x = 547,051.71/656.22
  6. Step 6: Final answer
    x = 833.64

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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.