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Finding the Fourth Proportional to 529,559.96, 730,771.32 and 287,837

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Solution

The fourth proportional to 529,559.96, 730,771.32 and 287,837 is: 397,203.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,559.96 : 730,771.32 = 287,837 : x
  2. Step 2: Convert to fraction form
    529,559.96/730,771.32 = 287,837/x
  3. Step 3: Cross multiply
    529,559.96x = 730,771.32 × 287,837
  4. Step 4: Simplify right side
    529,559.96x = 210,343,024,434.84
  5. Step 5: Solve for x
    x = 210,343,024,434.84/529,559.96
  6. Step 6: Final answer
    x = 397,203.41

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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.