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Finding the Fourth Proportional to 625.64, 933.18 and 589.51

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Solution

The fourth proportional to 625.64, 933.18 and 589.51 is: 879.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.64 : 933.18 = 589.51 : x
  2. Step 2: Convert to fraction form
    625.64/933.18 = 589.51/x
  3. Step 3: Cross multiply
    625.64x = 933.18 × 589.51
  4. Step 4: Simplify right side
    625.64x = 550,115.14
  5. Step 5: Solve for x
    x = 550,115.14/625.64
  6. Step 6: Final answer
    x = 879.28

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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.