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Finding the Fourth Proportional to 529,094.75, 730,156.11 and 287,382.04

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Solution

The fourth proportional to 529,094.75, 730,156.11 and 287,382.04 is: 396,590.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,094.75 : 730,156.11 = 287,382.04 : x
  2. Step 2: Convert to fraction form
    529,094.75/730,156.11 = 287,382.04/x
  3. Step 3: Cross multiply
    529,094.75x = 730,156.11 × 287,382.04
  4. Step 4: Simplify right side
    529,094.75x = 209,833,749,507.19
  5. Step 5: Solve for x
    x = 209,833,749,507.19/529,094.75
  6. Step 6: Final answer
    x = 396,590.12

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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.