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Finding the Fourth Proportional to 605,027.60, 907,735.80 and 405,573.20

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Solution

The fourth proportional to 605,027.60, 907,735.80 and 405,573.20 is: 608,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,027.60 : 907,735.80 = 405,573.20 : x
  2. Step 2: Convert to fraction form
    605,027.60/907,735.80 = 405,573.20/x
  3. Step 3: Cross multiply
    605,027.60x = 907,735.80 × 405,573.20
  4. Step 4: Simplify right side
    605,027.60x = 368,153,313,160.56
  5. Step 5: Solve for x
    x = 368,153,313,160.56/605,027.60
  6. Step 6: Final answer
    x = 608,490.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.