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Finding the Fourth Proportional to 619.56, 933.68 and 580.63

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Solution

The fourth proportional to 619.56, 933.68 and 580.63 is: 875.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.56 : 933.68 = 580.63 : x
  2. Step 2: Convert to fraction form
    619.56/933.68 = 580.63/x
  3. Step 3: Cross multiply
    619.56x = 933.68 × 580.63
  4. Step 4: Simplify right side
    619.56x = 542,117.59
  5. Step 5: Solve for x
    x = 542,117.59/619.56
  6. Step 6: Final answer
    x = 875.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.