Home / 529,623.62-730,884.03-287,908.28

Finding the Fourth Proportional to 529,623.62, 730,884.03 and 287,908.28

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Solution

The fourth proportional to 529,623.62, 730,884.03 and 287,908.28 is: 397,315.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,623.62 : 730,884.03 = 287,908.28 : x
  2. Step 2: Convert to fraction form
    529,623.62/730,884.03 = 287,908.28/x
  3. Step 3: Cross multiply
    529,623.62x = 730,884.03 × 287,908.28
  4. Step 4: Simplify right side
    529,623.62x = 210,427,563,956.77
  5. Step 5: Solve for x
    x = 210,427,563,956.77/529,623.62
  6. Step 6: Final answer
    x = 397,315.29

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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.