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Finding the Fourth Proportional to 619.76, 924.04 and 605.18

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Solution

The fourth proportional to 619.76, 924.04 and 605.18 is: 902.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.76 : 924.04 = 605.18 : x
  2. Step 2: Convert to fraction form
    619.76/924.04 = 605.18/x
  3. Step 3: Cross multiply
    619.76x = 924.04 × 605.18
  4. Step 4: Simplify right side
    619.76x = 559,210.53
  5. Step 5: Solve for x
    x = 559,210.53/619.76
  6. Step 6: Final answer
    x = 902.30

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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.