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Finding the Fourth Proportional to 624.81, 933.79 and 575.56

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Solution

The fourth proportional to 624.81, 933.79 and 575.56 is: 860.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.81 : 933.79 = 575.56 : x
  2. Step 2: Convert to fraction form
    624.81/933.79 = 575.56/x
  3. Step 3: Cross multiply
    624.81x = 933.79 × 575.56
  4. Step 4: Simplify right side
    624.81x = 537,446.11
  5. Step 5: Solve for x
    x = 537,446.11/624.81
  6. Step 6: Final answer
    x = 860.17

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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.