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Finding the Fourth Proportional to 555.02, 829.52 and 511.24

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Solution

The fourth proportional to 555.02, 829.52 and 511.24 is: 764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.02 : 829.52 = 511.24 : x
  2. Step 2: Convert to fraction form
    555.02/829.52 = 511.24/x
  3. Step 3: Cross multiply
    555.02x = 829.52 × 511.24
  4. Step 4: Simplify right side
    555.02x = 424,077.10
  5. Step 5: Solve for x
    x = 424,077.10/555.02
  6. Step 6: Final answer
    x = 764.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.