Home / 529,014.09-730,039.26-287,296.73

Finding the Fourth Proportional to 529,014.09, 730,039.26 and 287,296.73

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Solution

The fourth proportional to 529,014.09, 730,039.26 and 287,296.73 is: 396,469.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,014.09 : 730,039.26 = 287,296.73 : x
  2. Step 2: Convert to fraction form
    529,014.09/730,039.26 = 287,296.73/x
  3. Step 3: Cross multiply
    529,014.09x = 730,039.26 × 287,296.73
  4. Step 4: Simplify right side
    529,014.09x = 209,737,888,519.42
  5. Step 5: Solve for x
    x = 209,737,888,519.42/529,014.09
  6. Step 6: Final answer
    x = 396,469.38

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1.5x scale

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.