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Finding the Fourth Proportional to 529,465.01, 730,667.30 and 287,747.57

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Solution

The fourth proportional to 529,465.01, 730,667.30 and 287,747.57 is: 397,094.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,465.01 : 730,667.30 = 287,747.57 : x
  2. Step 2: Convert to fraction form
    529,465.01/730,667.30 = 287,747.57/x
  3. Step 3: Cross multiply
    529,465.01x = 730,667.30 × 287,747.57
  4. Step 4: Simplify right side
    529,465.01x = 210,247,734,961.39
  5. Step 5: Solve for x
    x = 210,247,734,961.39/529,465.01
  6. Step 6: Final answer
    x = 397,094.68

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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.