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Finding the Fourth Proportional to 656.70, 904.92 and 540.06

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Solution

The fourth proportional to 656.70, 904.92 and 540.06 is: 744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.70 : 904.92 = 540.06 : x
  2. Step 2: Convert to fraction form
    656.70/904.92 = 540.06/x
  3. Step 3: Cross multiply
    656.70x = 904.92 × 540.06
  4. Step 4: Simplify right side
    656.70x = 488,711.10
  5. Step 5: Solve for x
    x = 488,711.10/656.70
  6. Step 6: Final answer
    x = 744.19

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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.