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Finding the Fourth Proportional to 1,555.24, 2,332.86 and 580.72

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Solution

The fourth proportional to 1,555.24, 2,332.86 and 580.72 is: 871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.24 : 2,332.86 = 580.72 : x
  2. Step 2: Convert to fraction form
    1,555.24/2,332.86 = 580.72/x
  3. Step 3: Cross multiply
    1,555.24x = 2,332.86 × 580.72
  4. Step 4: Simplify right side
    1,555.24x = 1,354,738.46
  5. Step 5: Solve for x
    x = 1,354,738.46/1,555.24
  6. Step 6: Final answer
    x = 871.08

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