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Finding the Fourth Proportional to 619.04, 930.58 and 573.93

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Solution

The fourth proportional to 619.04, 930.58 and 573.93 is: 862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.04 : 930.58 = 573.93 : x
  2. Step 2: Convert to fraction form
    619.04/930.58 = 573.93/x
  3. Step 3: Cross multiply
    619.04x = 930.58 × 573.93
  4. Step 4: Simplify right side
    619.04x = 534,086.34
  5. Step 5: Solve for x
    x = 534,086.34/619.04
  6. Step 6: Final answer
    x = 862.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.