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Finding the Fourth Proportional to 677.50, 933.93 and 583.75

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Solution

The fourth proportional to 677.50, 933.93 and 583.75 is: 804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.50 : 933.93 = 583.75 : x
  2. Step 2: Convert to fraction form
    677.50/933.93 = 583.75/x
  3. Step 3: Cross multiply
    677.50x = 933.93 × 583.75
  4. Step 4: Simplify right side
    677.50x = 545,181.64
  5. Step 5: Solve for x
    x = 545,181.64/677.50
  6. Step 6: Final answer
    x = 804.70

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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.