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Finding the Fourth Proportional to 529,523.68, 730,747.02 and 287,806.33

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Solution

The fourth proportional to 529,523.68, 730,747.02 and 287,806.33 is: 397,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,523.68 : 730,747.02 = 287,806.33 : x
  2. Step 2: Convert to fraction form
    529,523.68/730,747.02 = 287,806.33/x
  3. Step 3: Cross multiply
    529,523.68x = 730,747.02 × 287,806.33
  4. Step 4: Simplify right side
    529,523.68x = 210,313,617,984.64
  5. Step 5: Solve for x
    x = 210,313,617,984.64/529,523.68
  6. Step 6: Final answer
    x = 397,175.10

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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.