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Finding the Fourth Proportional to 617.04, 858.33 and 605.16

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Solution

The fourth proportional to 617.04, 858.33 and 605.16 is: 841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.04 : 858.33 = 605.16 : x
  2. Step 2: Convert to fraction form
    617.04/858.33 = 605.16/x
  3. Step 3: Cross multiply
    617.04x = 858.33 × 605.16
  4. Step 4: Simplify right side
    617.04x = 519,426.98
  5. Step 5: Solve for x
    x = 519,426.98/617.04
  6. Step 6: Final answer
    x = 841.80

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.