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Finding the Fourth Proportional to 1,036.86, 1,555.53 and 523.74

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Solution

The fourth proportional to 1,036.86, 1,555.53 and 523.74 is: 785.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.86 : 1,555.53 = 523.74 : x
  2. Step 2: Convert to fraction form
    1,036.86/1,555.53 = 523.74/x
  3. Step 3: Cross multiply
    1,036.86x = 1,555.53 × 523.74
  4. Step 4: Simplify right side
    1,036.86x = 814,693.28
  5. Step 5: Solve for x
    x = 814,693.28/1,036.86
  6. Step 6: Final answer
    x = 785.73

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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.