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Finding the Fourth Proportional to 529,599.99, 730,856.49 and 287,883.03

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Solution

The fourth proportional to 529,599.99, 730,856.49 and 287,883.03 is: 397,283.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,599.99 : 730,856.49 = 287,883.03 : x
  2. Step 2: Convert to fraction form
    529,599.99/730,856.49 = 287,883.03/x
  3. Step 3: Cross multiply
    529,599.99x = 730,856.49 × 287,883.03
  4. Step 4: Simplify right side
    529,599.99x = 210,401,180,836.37
  5. Step 5: Solve for x
    x = 210,401,180,836.37/529,599.99
  6. Step 6: Final answer
    x = 397,283.20

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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.