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Finding the Fourth Proportional to 529,094.62, 730,155.93 and 287,381.91

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Solution

The fourth proportional to 529,094.62, 730,155.93 and 287,381.91 is: 396,589.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,094.62 : 730,155.93 = 287,381.91 : x
  2. Step 2: Convert to fraction form
    529,094.62/730,155.93 = 287,381.91/x
  3. Step 3: Cross multiply
    529,094.62x = 730,155.93 × 287,381.91
  4. Step 4: Simplify right side
    529,094.62x = 209,833,605,761.23
  5. Step 5: Solve for x
    x = 209,833,605,761.23/529,094.62
  6. Step 6: Final answer
    x = 396,589.94

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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.