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Finding the Fourth Proportional to 619.18, 933.09 and 529.07

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Solution

The fourth proportional to 619.18, 933.09 and 529.07 is: 797.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.18 : 933.09 = 529.07 : x
  2. Step 2: Convert to fraction form
    619.18/933.09 = 529.07/x
  3. Step 3: Cross multiply
    619.18x = 933.09 × 529.07
  4. Step 4: Simplify right side
    619.18x = 493,663.28
  5. Step 5: Solve for x
    x = 493,663.28/619.18
  6. Step 6: Final answer
    x = 797.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.