Home / 1,231.59-1,848.06-528.74

Finding the Fourth Proportional to 1,231.59, 1,848.06 and 528.74

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Solution

The fourth proportional to 1,231.59, 1,848.06 and 528.74 is: 793.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.59 : 1,848.06 = 528.74 : x
  2. Step 2: Convert to fraction form
    1,231.59/1,848.06 = 528.74/x
  3. Step 3: Cross multiply
    1,231.59x = 1,848.06 × 528.74
  4. Step 4: Simplify right side
    1,231.59x = 977,134.00
  5. Step 5: Solve for x
    x = 977,134.00/1,231.59
  6. Step 6: Final answer
    x = 793.39

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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.