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Finding the Fourth Proportional to 619.65, 924.46 and 573.18

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Solution

The fourth proportional to 619.65, 924.46 and 573.18 is: 855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.65 : 924.46 = 573.18 : x
  2. Step 2: Convert to fraction form
    619.65/924.46 = 573.18/x
  3. Step 3: Cross multiply
    619.65x = 924.46 × 573.18
  4. Step 4: Simplify right side
    619.65x = 529,880.31
  5. Step 5: Solve for x
    x = 529,880.31/619.65
  6. Step 6: Final answer
    x = 855.13

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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.