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Finding the Fourth Proportional to 554.88, 764.28 and 430.53

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Solution

The fourth proportional to 554.88, 764.28 and 430.53 is: 593.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.88 : 764.28 = 430.53 : x
  2. Step 2: Convert to fraction form
    554.88/764.28 = 430.53/x
  3. Step 3: Cross multiply
    554.88x = 764.28 × 430.53
  4. Step 4: Simplify right side
    554.88x = 329,045.47
  5. Step 5: Solve for x
    x = 329,045.47/554.88
  6. Step 6: Final answer
    x = 593.00

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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.