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Finding the Fourth Proportional to 605,080.10, 907,814.55 and 405,625.70

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Solution

The fourth proportional to 605,080.10, 907,814.55 and 405,625.70 is: 608,568.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,080.10 : 907,814.55 = 405,625.70 : x
  2. Step 2: Convert to fraction form
    605,080.10/907,814.55 = 405,625.70/x
  3. Step 3: Cross multiply
    605,080.10x = 907,814.55 × 405,625.70
  4. Step 4: Simplify right side
    605,080.10x = 368,232,912,313.94
  5. Step 5: Solve for x
    x = 368,232,912,313.94/605,080.10
  6. Step 6: Final answer
    x = 608,568.87

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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.