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Finding the Fourth Proportional to 529,424.02, 730,602.75 and 287,702.02

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Solution

The fourth proportional to 529,424.02, 730,602.75 and 287,702.02 is: 397,027.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,424.02 : 730,602.75 = 287,702.02 : x
  2. Step 2: Convert to fraction form
    529,424.02/730,602.75 = 287,702.02/x
  3. Step 3: Cross multiply
    529,424.02x = 730,602.75 × 287,702.02
  4. Step 4: Simplify right side
    529,424.02x = 210,195,886,992.56
  5. Step 5: Solve for x
    x = 210,195,886,992.56/529,424.02
  6. Step 6: Final answer
    x = 397,027.48

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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.