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Finding the Fourth Proportional to 617.58, 919.86 and 604.76

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Solution

The fourth proportional to 617.58, 919.86 and 604.76 is: 900.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.58 : 919.86 = 604.76 : x
  2. Step 2: Convert to fraction form
    617.58/919.86 = 604.76/x
  3. Step 3: Cross multiply
    617.58x = 919.86 × 604.76
  4. Step 4: Simplify right side
    617.58x = 556,294.53
  5. Step 5: Solve for x
    x = 556,294.53/617.58
  6. Step 6: Final answer
    x = 900.77

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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.