Home / 529,130.75-730,205.82-287,418.04

Finding the Fourth Proportional to 529,130.75, 730,205.82 and 287,418.04

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Solution

The fourth proportional to 529,130.75, 730,205.82 and 287,418.04 is: 396,639.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,130.75 : 730,205.82 = 287,418.04 : x
  2. Step 2: Convert to fraction form
    529,130.75/730,205.82 = 287,418.04/x
  3. Step 3: Cross multiply
    529,130.75x = 730,205.82 × 287,418.04
  4. Step 4: Simplify right side
    529,130.75x = 209,874,323,755.48
  5. Step 5: Solve for x
    x = 209,874,323,755.48/529,130.75
  6. Step 6: Final answer
    x = 396,639.82

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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.