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Finding the Fourth Proportional to 529,644.35, 730,900.58 and 287,933.01

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Solution

The fourth proportional to 529,644.35, 730,900.58 and 287,933.01 is: 397,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,644.35 : 730,900.58 = 287,933.01 : x
  2. Step 2: Convert to fraction form
    529,644.35/730,900.58 = 287,933.01/x
  3. Step 3: Cross multiply
    529,644.35x = 730,900.58 × 287,933.01
  4. Step 4: Simplify right side
    529,644.35x = 210,450,402,570.48
  5. Step 5: Solve for x
    x = 210,450,402,570.48/529,644.35
  6. Step 6: Final answer
    x = 397,342.87

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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.