Home / 529,631.56-730,896.31-287,914.60

Finding the Fourth Proportional to 529,631.56, 730,896.31 and 287,914.60

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Solution

The fourth proportional to 529,631.56, 730,896.31 and 287,914.60 is: 397,324.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,631.56 : 730,896.31 = 287,914.60 : x
  2. Step 2: Convert to fraction form
    529,631.56/730,896.31 = 287,914.60/x
  3. Step 3: Cross multiply
    529,631.56x = 730,896.31 × 287,914.60
  4. Step 4: Simplify right side
    529,631.56x = 210,435,720,008.64
  5. Step 5: Solve for x
    x = 210,435,720,008.64/529,631.56
  6. Step 6: Final answer
    x = 397,324.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.