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Finding the Fourth Proportional to 529,179.75, 730,268.06 and 290,715.75

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Solution

The fourth proportional to 529,179.75, 730,268.06 and 290,715.75 is: 401,187.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,179.75 : 730,268.06 = 290,715.75 : x
  2. Step 2: Convert to fraction form
    529,179.75/730,268.06 = 290,715.75/x
  3. Step 3: Cross multiply
    529,179.75x = 730,268.06 × 290,715.75
  4. Step 4: Simplify right side
    529,179.75x = 212,300,425,310.37
  5. Step 5: Solve for x
    x = 212,300,425,310.37/529,179.75
  6. Step 6: Final answer
    x = 401,187.74

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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.