Home / 529,678.43-730,964.55-287,961.93

Finding the Fourth Proportional to 529,678.43, 730,964.55 and 287,961.93

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Solution

The fourth proportional to 529,678.43, 730,964.55 and 287,961.93 is: 397,391.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,678.43 : 730,964.55 = 287,961.93 : x
  2. Step 2: Convert to fraction form
    529,678.43/730,964.55 = 287,961.93/x
  3. Step 3: Cross multiply
    529,678.43x = 730,964.55 × 287,961.93
  4. Step 4: Simplify right side
    529,678.43x = 210,489,962,579.58
  5. Step 5: Solve for x
    x = 210,489,962,579.58/529,678.43
  6. Step 6: Final answer
    x = 397,391.98

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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.