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Finding the Fourth Proportional to 1,064.50, 1,596.74 and 580.63

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Solution

The fourth proportional to 1,064.50, 1,596.74 and 580.63 is: 870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.50 : 1,596.74 = 580.63 : x
  2. Step 2: Convert to fraction form
    1,064.50/1,596.74 = 580.63/x
  3. Step 3: Cross multiply
    1,064.50x = 1,596.74 × 580.63
  4. Step 4: Simplify right side
    1,064.50x = 927,115.15
  5. Step 5: Solve for x
    x = 927,115.15/1,064.50
  6. Step 6: Final answer
    x = 870.94

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Double scale
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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.