Home / 529,336.95-730,489.45-287,619.54

Finding the Fourth Proportional to 529,336.95, 730,489.45 and 287,619.54

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Solution

The fourth proportional to 529,336.95, 730,489.45 and 287,619.54 is: 396,917.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,336.95 : 730,489.45 = 287,619.54 : x
  2. Step 2: Convert to fraction form
    529,336.95/730,489.45 = 287,619.54/x
  3. Step 3: Cross multiply
    529,336.95x = 730,489.45 × 287,619.54
  4. Step 4: Simplify right side
    529,336.95x = 210,103,037,204.04
  5. Step 5: Solve for x
    x = 210,103,037,204.04/529,336.95
  6. Step 6: Final answer
    x = 396,917.38

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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.