Home / 529,679.09-730,965.46-287,962.58

Finding the Fourth Proportional to 529,679.09, 730,965.46 and 287,962.58

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Solution

The fourth proportional to 529,679.09, 730,965.46 and 287,962.58 is: 397,392.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,679.09 : 730,965.46 = 287,962.58 : x
  2. Step 2: Convert to fraction form
    529,679.09/730,965.46 = 287,962.58/x
  3. Step 3: Cross multiply
    529,679.09x = 730,965.46 × 287,962.58
  4. Step 4: Simplify right side
    529,679.09x = 210,490,701,399.92
  5. Step 5: Solve for x
    x = 210,490,701,399.92/529,679.09
  6. Step 6: Final answer
    x = 397,392.89

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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.