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Finding the Fourth Proportional to 529,515.83, 730,736.74 and 287,798.97

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Solution

The fourth proportional to 529,515.83, 730,736.74 and 287,798.97 is: 397,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,515.83 : 730,736.74 = 287,798.97 : x
  2. Step 2: Convert to fraction form
    529,515.83/730,736.74 = 287,798.97/x
  3. Step 3: Cross multiply
    529,515.83x = 730,736.74 × 287,798.97
  4. Step 4: Simplify right side
    529,515.83x = 210,305,284,213.17
  5. Step 5: Solve for x
    x = 210,305,284,213.17/529,515.83
  6. Step 6: Final answer
    x = 397,165.24

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1.5x scale

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.