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Finding the Fourth Proportional to 1,036.50, 1,555.23 and 580.50

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Solution

The fourth proportional to 1,036.50, 1,555.23 and 580.50 is: 871.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.50 : 1,555.23 = 580.50 : x
  2. Step 2: Convert to fraction form
    1,036.50/1,555.23 = 580.50/x
  3. Step 3: Cross multiply
    1,036.50x = 1,555.23 × 580.50
  4. Step 4: Simplify right side
    1,036.50x = 902,811.02
  5. Step 5: Solve for x
    x = 902,811.02/1,036.50
  6. Step 6: Final answer
    x = 871.02

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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.