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Finding the Fourth Proportional to 605,027.10, 907,735.05 and 405,572.70

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Solution

The fourth proportional to 605,027.10, 907,735.05 and 405,572.70 is: 608,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,027.10 : 907,735.05 = 405,572.70 : x
  2. Step 2: Convert to fraction form
    605,027.10/907,735.05 = 405,572.70/x
  3. Step 3: Cross multiply
    605,027.10x = 907,735.05 × 405,572.70
  4. Step 4: Simplify right side
    605,027.10x = 368,152,555,113.14
  5. Step 5: Solve for x
    x = 368,152,555,113.14/605,027.10
  6. Step 6: Final answer
    x = 608,489.36

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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.