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Finding the Fourth Proportional to 529,588.42, 730,832.50 and 287,870.98

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Solution

The fourth proportional to 529,588.42, 730,832.50 and 287,870.98 is: 397,262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,588.42 : 730,832.50 = 287,870.98 : x
  2. Step 2: Convert to fraction form
    529,588.42/730,832.50 = 287,870.98/x
  3. Step 3: Cross multiply
    529,588.42x = 730,832.50 × 287,870.98
  4. Step 4: Simplify right side
    529,588.42x = 210,385,467,990.85
  5. Step 5: Solve for x
    x = 210,385,467,990.85/529,588.42
  6. Step 6: Final answer
    x = 397,262.22

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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.