Home / 529,489.22-730,699.91-287,772.36

Finding the Fourth Proportional to 529,489.22, 730,699.91 and 287,772.36

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Solution

The fourth proportional to 529,489.22, 730,699.91 and 287,772.36 is: 397,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,489.22 : 730,699.91 = 287,772.36 : x
  2. Step 2: Convert to fraction form
    529,489.22/730,699.91 = 287,772.36/x
  3. Step 3: Cross multiply
    529,489.22x = 730,699.91 × 287,772.36
  4. Step 4: Simplify right side
    529,489.22x = 210,275,236,113.63
  5. Step 5: Solve for x
    x = 210,275,236,113.63/529,489.22
  6. Step 6: Final answer
    x = 397,128.46

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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.