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Finding the Fourth Proportional to 655.29, 904.01 and 555.28

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Solution

The fourth proportional to 655.29, 904.01 and 555.28 is: 766.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.29 : 904.01 = 555.28 : x
  2. Step 2: Convert to fraction form
    655.29/904.01 = 555.28/x
  3. Step 3: Cross multiply
    655.29x = 904.01 × 555.28
  4. Step 4: Simplify right side
    655.29x = 501,973.64
  5. Step 5: Solve for x
    x = 501,973.64/655.29
  6. Step 6: Final answer
    x = 766.03

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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.