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Finding the Fourth Proportional to 529,309.26, 730,437.93 and 287,595.54

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Solution

The fourth proportional to 529,309.26, 730,437.93 and 287,595.54 is: 396,877.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,309.26 : 730,437.93 = 287,595.54 : x
  2. Step 2: Convert to fraction form
    529,309.26/730,437.93 = 287,595.54/x
  3. Step 3: Cross multiply
    529,309.26x = 730,437.93 × 287,595.54
  4. Step 4: Simplify right side
    529,309.26x = 210,070,690,914.83
  5. Step 5: Solve for x
    x = 210,070,690,914.83/529,309.26
  6. Step 6: Final answer
    x = 396,877.04

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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.